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subitvPl b1l b2l br : b2l <= b1l -> {subset Interval b1l br <= Interval b2l br}.
Proof. by move=> ?; apply: subitvP; rewrite subitvE lexx andbT. Qed.
Lemma
subitvPl
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "apply", "lexx", "subitvE", "subitvP" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
subitvPr bl b1r b2r : b1r <= b2r -> {subset Interval bl b1r <= Interval bl b2r}.
Proof. by move=> ?; apply: subitvP; rewrite subitvE lexx. Qed.
Lemma
subitvPr
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "apply", "lexx", "subitvE", "subitvP" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_xx x cl cr y : (y \in Interval (BSide cl x) (BSide cr x)) = cl && ~~ cr && (y == x).
Proof. by case: cl cr => [] []; rewrite [LHS]lteif_anti // eq_sym. Qed.
Lemma
itv_xx
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "eq_sym", "lteif_anti" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
boundl_in_itv c x b : (x \in Interval (BSide c x) b) = c && (BRight x <= b).
Proof. by rewrite itv_boundlr bound_lexx. Qed.
Lemma
boundl_in_itv
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "BRight", "bound_lexx", "itv_boundlr" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
boundr_in_itv c x b : (x \in Interval b (BSide c x)) = ~~ c && (b <= BLeft x).
Proof. by rewrite itv_boundlr bound_lexx implybF andbC. Qed.
Lemma
boundr_in_itv
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "BLeft", "bound_lexx", "itv_boundlr" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_in_itv
:= (boundl_in_itv, boundr_in_itv).
Definition
bound_in_itv
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "boundl_in_itv", "boundr_in_itv" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
lt_in_itv bl br x : x \in Interval bl br -> bl < br.
Proof. by case/andP; apply/le_lt_trans. Qed.
Lemma
lt_in_itv
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "apply", "le_lt_trans" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
lteif_in_itv cl cr yl yr x : x \in Interval (BSide cl yl) (BSide cr yr) -> yl < yr ?<= if cl && ~~ cr.
Proof. exact: lt_in_itv. Qed.
Lemma
lteif_in_itv
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "lt_in_itv" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_ge b1 b2 : ~~ (b1 < b2) -> Interval b1 b2 =i pred0.
Proof. by move=> ltb12 y; apply/contraNF: ltb12; apply/lt_in_itv. Qed.
Lemma
itv_ge
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "apply", "lt_in_itv" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_decompose i x : Prop
:= let: Interval l u := i in (match l return Prop with | BSide b lb => lb < x ?<= if b | BInfty b => b end * match u return Prop with | BSide b ub => x < ub ?<= if ~~ b | BInfty b => ~~ b end)%type.
Definition
itv_decompose
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "type" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_dec : forall x i, reflect (itv_decompose i x) (x \in i).
Proof. by move=> ? [[? ?|[]][? ?|[]]]; apply: (iffP andP); case. Qed.
Lemma
itv_dec
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "apply", "itv_decompose" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_rewrite i x : Type
:= let: Interval l u := i in (match l with | BLeft a => (a <= x) * ((x < a) = false) | BRight a => (a <= x) * (a < x) * ((x <= a) = false) * ((x < a) = false) | -oo => forall x : T, x == x | +oo => forall b : bool, unkeyed b = false end * match u with | BRight b => (x ...
Definition
itv_rewrite
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "BLeft", "BRight", "type" ]
we compute a set of rewrite rules associated to an interval
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itvP x i : x \in i -> itv_rewrite i x.
Proof. case: i => [[[]a|[]][[]b|[]]] /andP [] ha hb; rewrite /= ?bound_in_itv; do ![split | apply/negbTE; rewrite (le_gtF, lt_geF)]; by [|apply: ltW | move: (lteif_trans ha hb) => //=; exact: ltW]. Qed.
Lemma
itvP
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "apply", "bound_in_itv", "itv_rewrite", "le_gtF", "ltW", "lt_geF", "lteif_trans", "split" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_splitU1 b x : b <= BLeft x -> Interval b (BRight x) =i [predU1 x & Interval b (BLeft x)].
Proof. move=> bx z; rewrite !inE/= !subitvE ?bnd_simp//= lt_neqAle. by case: (eqVneq z x) => [->|]//=; rewrite lexx bx. Qed.
Lemma
itv_splitU1
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "BLeft", "BRight", "bnd_simp", "eqVneq", "inE", "lexx", "lt_neqAle", "predU1", "subitvE" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_split1U b x : BRight x <= b -> Interval (BLeft x) b =i [predU1 x & Interval (BRight x) b].
Proof. move=> bx z; rewrite !inE/= !subitvE ?bnd_simp//= lt_neqAle. by case: (eqVneq z x) => [->|]//=; rewrite lexx bx. Qed.
Lemma
itv_split1U
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "BLeft", "BRight", "bnd_simp", "eqVneq", "inE", "lexx", "lt_neqAle", "predU1", "subitvE" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_meet bl br : itv_bound T
:= match bl, br with | -oo, _ | _, -oo => -oo | +oo, b | b, +oo => b | BSide xb x, BSide yb y => BSide (((x <= y) && xb) || ((y <= x) && yb)) (x `&` y) end.
Definition
bound_meet
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_join bl br : itv_bound T
:= match bl, br with | -oo, b | b, -oo => b | +oo, _ | _, +oo => +oo | BSide xb x, BSide yb y => BSide ((~~ (x <= y) || yb) && (~~ (y <= x) || xb)) (x `|` y) end.
Definition
bound_join
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_meetC : commutative bound_meet.
Proof. case=> [? ?|[]][? ?|[]] //=; rewrite meetC; congr BSide. by case: lcomparableP; rewrite ?orbF // orbC. Qed.
Lemma
bound_meetC
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "bound_meet", "lcomparableP", "meetC" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_joinC : commutative bound_join.
Proof. case=> [? ?|[]][? ?|[]] //=; rewrite joinC; congr BSide. by case: lcomparableP; rewrite ?andbT // andbC. Qed.
Lemma
bound_joinC
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "bound_join", "joinC", "lcomparableP" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_meetA : associative bound_meet.
Proof. case=> [? x|[]][? y|[]][? z|[]] //=; rewrite !lexI meetA; congr BSide. by case: (lcomparableP x y) => [|||->]; case: (lcomparableP y z) => [|||->]; case: (lcomparableP x z) => [|||//<-]; case: (lcomparableP x y); rewrite //= ?andbF ?orbF ?lexx ?orbA //; case: (lcomparableP y z). Qed.
Lemma
bound_meetA
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "bound_meet", "lcomparableP", "lexI", "lexx", "meetA" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_joinA : associative bound_join.
Proof. case=> [? x|[]][? y|[]][? z|[]] //=; rewrite !leUx joinA; congr BSide. by case: (lcomparableP x y) => [|||->]; case: (lcomparableP y z) => [|||->]; case: (lcomparableP x z) => [|||//<-]; case: (lcomparableP x y); rewrite //= ?orbT ?andbT ?lexx ?andbA //; case: (lcomparableP y z). Qed.
Lemma
bound_joinA
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "bound_join", "joinA", "lcomparableP", "leUx", "lexx" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_meetKU b2 b1 : bound_join b1 (bound_meet b1 b2) = b1.
Proof. case: b1 b2 => [? ?|[]][? ?|[]] //=; rewrite ?meetKU ?joinxx ?leIl ?lexI ?lexx ?andbb //=; congr BSide. by case: lcomparableP; rewrite ?orbF /= ?andbb ?orbK. Qed.
Lemma
bound_meetKU
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "bound_join", "bound_meet", "joinxx", "lcomparableP", "leIl", "lexI", "lexx", "meetKU" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_joinKI b2 b1 : bound_meet b1 (bound_join b1 b2) = b1.
Proof. case: b1 b2 => [? ?|[]][? ?|[]] //=; rewrite ?joinKI ?meetxx ?leUl ?leUx ?lexx ?orbb //=; congr BSide. by case: lcomparableP; rewrite ?orbF ?orbb ?andKb. Qed.
Lemma
bound_joinKI
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "andKb", "bound_join", "bound_meet", "joinKI", "lcomparableP", "leUl", "leUx", "lexx", "meetxx" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_leEmeet b1 b2 : (b1 <= b2) = (bound_meet b1 b2 == b1).
Proof. case: b1 b2 => [[]t[][]|[][][]] //=; rewrite ?eqxx// => t'; rewrite [LHS]/<=%O /eq_op ?andbT ?andbF ?orbF/= /eq_op/= /eq_op/=; case: lcomparableP => //=; rewrite ?eqxx//=; [| | |]. - by move/lt_eqF. - move=> ic; apply: esym; apply: contraNF ic. by move=> /eqP/meet_idPl; apply: le_comparable. - by move/lt_e...
Lemma
bound_leEmeet
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "apply", "bound_meet", "eqxx", "lcomparableP", "le_comparable", "lt_eqF", "meet_idPl" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_le0x b : -oo <= b.
Proof. by []. Qed.
Lemma
bound_le0x
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
bound_lex1 b : b <= +oo.
Proof. by case: b => [|[]]. Qed.
Lemma
bound_lex1
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_meet i1 i2 : interval T
:= let: Interval b1l b1r := i1 in let: Interval b2l b2r := i2 in Interval (b1l `|` b2l) (b1r `&` b2r).
Definition
itv_meet
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "interval" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_join i1 i2 : interval T
:= let: Interval b1l b1r := i1 in let: Interval b2l b2r := i2 in Interval (b1l `&` b2l) (b1r `|` b2r).
Definition
itv_join
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "interval" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_meetC : commutative itv_meet.
Proof. by case=> [? ?][? ?] /=; rewrite meetC joinC. Qed.
Lemma
itv_meetC
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_meet", "joinC", "meetC" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_joinC : commutative itv_join.
Proof. by case=> [? ?][? ?] /=; rewrite meetC joinC. Qed.
Lemma
itv_joinC
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_join", "joinC", "meetC" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_meetA : associative itv_meet.
Proof. by case=> [? ?][? ?][? ?] /=; rewrite meetA joinA. Qed.
Lemma
itv_meetA
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_meet", "joinA", "meetA" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_joinA : associative itv_join.
Proof. by case=> [? ?][? ?][? ?] /=; rewrite meetA joinA. Qed.
Lemma
itv_joinA
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_join", "joinA", "meetA" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_meetKU i2 i1 : itv_join i1 (itv_meet i1 i2) = i1.
Proof. by case: i1 i2 => [? ?][? ?] /=; rewrite meetKU joinKI. Qed.
Lemma
itv_meetKU
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_join", "itv_meet", "joinKI", "meetKU" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_joinKI i2 i1 : itv_meet i1 (itv_join i1 i2) = i1.
Proof. by case: i1 i2 => [? ?][? ?] /=; rewrite meetKU joinKI. Qed.
Lemma
itv_joinKI
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_join", "itv_meet", "joinKI", "meetKU" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_leEmeet i1 i2 : (i1 <= i2) = (itv_meet i1 i2 == i1).
Proof. by case: i1 i2 => [? ?] [? ?]; rewrite /eq_op/=/eq_op/= eq_meetl eq_joinl. Qed.
Lemma
itv_leEmeet
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "eq_joinl", "eq_meetl", "itv_meet" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_le0x i : Interval +oo -oo <= i.
Proof. by case: i => [[|[]]]. Qed.
Lemma
itv_le0x
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_lex1 i : i <= `]-oo, +oo[.
Proof. by case: i => [?[|[]]]. Qed.
Lemma
itv_lex1
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
in_itvI x i1 i2 : (x \in i1 `&` i2) = (x \in i1) && (x \in i2).
Proof. exact: lexI. Qed.
Lemma
in_itvI
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "lexI" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
BSide_min s (x y : T) : BSide s (Order.min x y) = Order.min (BSide s x) (BSide s y).
Proof. exact: comparable_BSide_min. Qed.
Lemma
BSide_min
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "comparable_BSide_min", "min" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
BSide_max s (x y : T) : BSide s (Order.max x y) = Order.max (BSide s x) (BSide s y).
Proof. exact: comparable_BSide_max. Qed.
Lemma
BSide_max
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "comparable_BSide_max", "max" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_bound_total : total (<=%O : rel (itv_bound T)).
Proof. by move=> [[]?|[]][[]?|[]]; rewrite /<=%O //=; case: ltgtP. Qed.
Lemma
itv_bound_total
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "itv_bound", "ltgtP", "rel", "total" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_meetUl : @left_distributive (interval T) _ Order.meet Order.join.
Proof. by move=> [? ?][? ?][? ?]; rewrite /Order.meet /Order.join /= -meetUl -joinIl. Qed.
Lemma
itv_meetUl
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "interval", "join", "joinIl", "meet", "meetUl" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_splitU c a b : a <= c <= b -> forall y, (y \in Interval a b) = (y \in Interval a c) || (y \in Interval c b).
Proof. case/andP => leac lecb y. rewrite !itv_boundlr !(ltNge (BLeft y) _ : (BRight y <= _) = _). case: (leP a) (leP b) (leP c) => leay [] leby [] lecy //=. - by case: leP lecy (le_trans lecb leby). - by case: leP leay (le_trans leac lecy). Qed.
Lemma
itv_splitU
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "BLeft", "BRight", "itv_boundlr", "leP", "le_trans", "ltNge" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_splitUeq x a b : x \in Interval a b -> forall y, (y \in Interval a b) = [|| y \in Interval a (BLeft x), y == x | y \in Interval (BRight x) b].
Proof. case/andP => ax xb y; rewrite (@itv_splitU (BLeft x)) ?ax ?ltW //. by congr orb; rewrite (@itv_splitU (BRight x)) ?bound_lexx // itv_xx. Qed.
Lemma
itv_splitUeq
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "BLeft", "BRight", "bound_lexx", "itv_splitU", "itv_xx", "ltW" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_total_meet3E i1 i2 i3 : i1 `&` i2 `&` i3 \in [:: i1 `&` i2; i1 `&` i3; i2 `&` i3].
Proof. case: i1 i2 i3 => [b1l b1r] [b2l b2r] [b3l b3r]; rewrite !inE /eq_op /=. case: (leP b1l b2l); case: (leP b1l b3l); case: (leP b2l b3l); case: (leP b1r b2r); case: (leP b1r b3r); case: (leP b2r b3r); rewrite ?eqxx ?orbT //= => b23r b13r b12r b23l b13l b12l. - by case: leP b13r (le_trans b12r b23r). - by case:...
Lemma
itv_total_meet3E
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "eqxx", "inE", "leP", "le_trans", "lt_trans" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
itv_total_join3E i1 i2 i3 : i1 `|` i2 `|` i3 \in [:: i1 `|` i2; i1 `|` i3; i2 `|` i3].
Proof. case: i1 i2 i3 => [b1l b1r] [b2l b2r] [b3l b3r]; rewrite !inE /eq_op /=. case: (leP b1l b2l); case: (leP b1l b3l); case: (leP b2l b3l); case: (leP b1r b2r); case: (leP b1r b3r); case: (leP b2r b3r); rewrite ?eqxx ?orbT //= => b23r b13r b12r b23l b13l b12l. - by case: leP b13r (le_trans b12r b23r). - by case:...
Lemma
itv_total_join3E
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "eqxx", "inE", "leP", "le_trans", "lt_trans" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
predC_itvl a : [predC Interval -oo a] =i Interval a +oo.
Proof. case: a => [b x|[]//] y. by rewrite !inE !subitvE/= bnd_simp andbT !lteBSide/= lteifNE negbK. Qed.
Lemma
predC_itvl
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "bnd_simp", "inE", "lteBSide", "lteifNE", "subitvE" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
predC_itvr a : [predC Interval a +oo] =i Interval -oo a.
Proof. by move=> y; rewrite inE/= -predC_itvl negbK. Qed.
Lemma
predC_itvr
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "inE", "predC_itvl" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
predC_itv i : [predC i] =i [predU Interval -oo i.1 & Interval i.2 +oo].
Proof. case: i => [a a']; move=> x; rewrite inE/= itv_splitI negb_and. by symmetry; rewrite inE/= -predC_itvl -predC_itvr. Qed.
Lemma
predC_itv
algebra
algebra/interval.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "eqtype", "seq", "choice", "fintype", "nmodule", "order", "Order.TTheory", "IntervalCan.Exports" ]
[ "inE", "itv_splitI", "predC_itvl", "predC_itvr" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
map_itv_bound S T (f : S -> T) (b : itv_bound S) : itv_bound T
:= match b with | BSide b x => BSide b (f x) | BInfty b => BInfty _ b end.
Definition
map_itv_bound
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "itv_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
map_itv_bound_comp S T U (f : T -> S) (g : U -> T) (b : itv_bound U) : map_itv_bound (f \o g) b = map_itv_bound f (map_itv_bound g b).
Proof. by case: b. Qed.
Lemma
map_itv_bound_comp
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "itv_bound", "map_itv_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
map_itv S T (f : S -> T) (i : interval S) : interval T
:= let 'Interval l u := i in Interval (map_itv_bound f l) (map_itv_bound f u).
Definition
map_itv
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "interval", "map_itv_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
map_itv_comp S T U (f : T -> S) (g : U -> T) (i : interval U) : map_itv (f \o g) i = map_itv f (map_itv g i).
Proof. by case: i => l u /=; rewrite -!map_itv_bound_comp. Qed.
Lemma
map_itv_comp
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "interval", "map_itv", "map_itv_bound_comp" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
opp_bound b
:= match b with | BSide b x => BSide (~~ b) (intZmod.oppz x) | BInfty b => BInfty _ (~~ b) end.
Definition
opp_bound
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "oppz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
opp_bound_ge0 b : (BLeft 0%R <= opp_bound b)%O = (b <= BRight 0%R)%O.
Proof. by case: b => [[] b | []//]; rewrite /= !bnd_simp oppr_ge0. Qed.
Lemma
opp_bound_ge0
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BLeft", "BRight", "bnd_simp", "opp_bound", "oppr_ge0" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
opp_bound_gt0 b : (BRight 0%R <= opp_bound b)%O = (b <= BLeft 0%R)%O.
Proof. by case: b => [[] b | []//]; rewrite /= !bnd_simp ?oppr_ge0 ?oppr_gt0. Qed.
Lemma
opp_bound_gt0
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BLeft", "BRight", "bnd_simp", "opp_bound", "oppr_ge0", "oppr_gt0" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
opp i
:= let: Interval l u := i in Interval (opp_bound u) (opp_bound l).
Definition
opp
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "opp_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
add_boundl b1 b2
:= match b1, b2 with | BSide b1 x1, BSide b2 x2 => BSide (b1 && b2) (intZmod.addz x1 x2) | _, _ => BInfty _ true end.
Definition
add_boundl
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "addz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
add_boundr b1 b2
:= match b1, b2 with | BSide b1 x1, BSide b2 x2 => BSide (b1 || b2) (intZmod.addz x1 x2) | _, _ => BInfty _ false end.
Definition
add_boundr
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "addz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
add i1 i2
:= let: Interval l1 u1 := i1 in let: Interval l2 u2 := i2 in Interval (add_boundl l1 l2) (add_boundr u1 u2).
Definition
add
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "add_boundl", "add_boundr", "l1", "l2" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
signb
:= EqZero | NonNeg | NonPos.
Variant
signb
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
sign_boundl b
:= let: b0 := BLeft 0%Z in if b == b0 then EqZero else if (b <= b0)%O then NonPos else NonNeg.
Definition
sign_boundl
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BLeft" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
sign_boundr b
:= let: b0 := BRight 0%Z in if b == b0 then EqZero else if (b <= b0)%O then NonPos else NonNeg.
Definition
sign_boundr
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BRight" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
signi
:= Known of signb | Unknown | Empty.
Variant
signi
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "signb" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
sign i : signi
:= let: Interval l u := i in match sign_boundl l, sign_boundr u with | EqZero, NonPos | NonNeg, EqZero | NonNeg, NonPos => Empty | EqZero, EqZero => Known EqZero | NonPos, EqZero | NonPos, NonPos => Known NonPos | EqZero, NonNeg | NonNeg, NonNeg => Known NonNeg | NonPos, NonNeg => Unknown end.
Definition
sign
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "sign_boundl", "sign_boundr", "signi" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
mul_boundl b1 b2
:= match b1, b2 with | BInfty _, _ | _, BInfty _ | BLeft 0%Z, _ | _, BLeft 0%Z => BLeft 0%Z | BSide b1 x1, BSide b2 x2 => BSide (b1 && b2) (intRing.mulz x1 x2) end.
Definition
mul_boundl
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BLeft", "mulz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
mul_boundr b1 b2
:= match b1, b2 with | BLeft 0%Z, _ | _, BLeft 0%Z => BLeft 0%Z | BRight 0%Z, _ | _, BRight 0%Z => BRight 0%Z | BSide b1 x1, BSide b2 x2 => BSide (b1 || b2) (intRing.mulz x1 x2) | _, BInfty _ | BInfty _, _ => +oo%O end.
Definition
mul_boundr
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BLeft", "BRight", "mulz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
mul_boundrC b1 b2 : mul_boundr b1 b2 = mul_boundr b2 b1.
Proof. by move: b1 b2 => [[] [[|?]|?] | []] [[] [[|?]|?] | []] //=; rewrite mulnC. Qed.
Lemma
mul_boundrC
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "mul_boundr", "mulnC" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
mul_boundr_gt0 b1 b2 : (BRight 0%Z <= b1 -> BRight 0%Z <= b2 -> BRight 0%Z <= mul_boundr b1 b2)%O.
Proof. case: b1 b2 => [b1b b1 | []] [b2b b2 | []]//=. - by case: b1b b2b => -[]; case: b1 b2 => [[|b1] | b1] [[|b2] | b2]. - by case: b1b b1 => -[[] |]. - by case: b2b b2 => -[[] |]. Qed.
Lemma
mul_boundr_gt0
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BRight", "mul_boundr" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
mul i1 i2
:= let: Interval l1 u1 := i1 in let: Interval l2 u2 := i2 in let: opp := opp_bound in let: mull := mul_boundl in let: mulr := mul_boundr in match sign i1, sign i2 with | Empty, _ | _, Empty => `[1, 0] | Known EqZero, _ | _, Known EqZero => `[0, 0] | Known NonNeg, Known NonNeg => Interval (mull l1 l2...
Definition
mul
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "l1", "l2", "max", "min", "mul_boundl", "mul_boundr", "opp", "opp_bound", "sign" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
min i j
:= let: Interval li ui := i in let: Interval lj uj := j in Interval (Order.min li lj) (Order.min ui uj).
Definition
min
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
max i j
:= let: Interval li ui := i in let: Interval lj uj := j in Interval (Order.max li lj) (Order.max ui uj).
Definition
max
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
keep_nonneg_bound b
:= match b with | BSide _ (Posz _) => BLeft 0%Z | BSide _ (Negz _) => -oo%O | BInfty _ => -oo%O end.
Definition
keep_nonneg_bound
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BLeft", "Posz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
keep_pos_bound b
:= match b with | BSide b 0%Z => BSide b 0%Z | BSide _ (Posz (S _)) => BRight 0%Z | BSide _ (Negz _) => -oo | BInfty _ => -oo end.
Definition
keep_pos_bound
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BRight", "Posz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
keep_nonpos_bound b
:= match b with | BSide _ (Negz _) | BSide _ (Posz 0) => BRight 0%Z | BSide _ (Posz (S _)) => +oo%O | BInfty _ => +oo%O end.
Definition
keep_nonpos_bound
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BRight", "Posz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
keep_neg_bound b
:= match b with | BSide b 0%Z => BSide b 0%Z | BSide _ (Negz _) => BLeft 0%Z | BSide _ (Posz _) => +oo | BInfty _ => +oo end.
Definition
keep_neg_bound
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BLeft", "Posz" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
inv i
:= let: Interval l u := i in Interval (keep_pos_bound l) (keep_neg_bound u).
Definition
inv
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "keep_neg_bound", "keep_pos_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
exprn_le1_bound b1 b2
:= if b2 isn't BSide _ 1%Z then +oo else if (BLeft (-1)%Z <= b1)%O then BRight 1%Z else +oo.
Definition
exprn_le1_bound
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "BLeft", "BRight" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
exprn i
:= let: Interval l u := i in Interval (keep_pos_bound l) (exprn_le1_bound l u).
Definition
exprn
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "exprn_le1_bound", "keep_pos_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
exprz i1 i2
:= let: Interval l2 _ := i2 in if l2 is BSide _ (Posz _) then exprn i1 else let: Interval l u := i1 in Interval (keep_pos_bound l) +oo.
Definition
exprz
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "Posz", "exprn", "keep_pos_bound", "l2" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
keep_sign i
:= let: Interval l u := i in Interval (keep_nonneg_bound l) (keep_nonpos_bound u).
Definition
keep_sign
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "keep_nonneg_bound", "keep_nonpos_bound" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
keep_nonpos i
:= let 'Interval l u := i in Interval -oo%O (keep_nonpos_bound u).
Definition
keep_nonpos
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "keep_nonpos_bound" ]
used in ereal.v
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
keep_nonneg i
:= let 'Interval l u := i in Interval (keep_nonneg_bound l) +oo%O.
Definition
keep_nonneg
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "keep_nonneg_bound" ]
used in ereal.v
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
t
:= Top | Real of interval int.
Variant
t
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "int", "interval" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
sub (x y : t)
:= match x, y with | _, Top => true | Top, Real _ => false | Real xi, Real yi => subitv xi yi end.
Definition
sub
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "subitv" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
spec (i : t) (x : T)
:= if i is Real i then sem i x else true.
Definition
spec
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
def (i : t)
:= Def { r : T; #[canonical=no] P : spec i r }.
Record
def
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "spec" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
typ i
:= Typ { sort : Type; #[canonical=no] sort_sem : interval int -> sort -> bool; #[canonical=no] allP : forall x : sort, spec sort_sem i x }.
Record
typ
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "allP", "int", "interval", "sort", "spec" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
mk {T f} i x P : @def T f i
:= @Def T f i x P.
Definition
mk
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "def" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
from {T f i} {x : @def T f i} (phx : phantom T (r x))
:= x.
Definition
from
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "def" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
fromP {T f i} {x : @def T f i} (phx : phantom T (r x))
:= P x.
Definition
fromP
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "def" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
num_sem (R : numDomainType) (i : interval int) (x : R) : bool
:= (x \in Num.real) && (x \in map_itv intr i).
Definition
num_sem
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "int", "interval", "intr", "map_itv", "real" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
nat_sem (i : interval int) (x : nat) : bool
:= Posz x \in i.
Definition
nat_sem
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "Posz", "int", "interval", "nat" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
posnum (R : numDomainType) & phant R
:= def (@num_sem R) (Real `]0, +oo[).
Definition
posnum
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "def", "num_sem" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
nonneg (R : numDomainType) & phant R
:= def (@num_sem R) (Real `[0, +oo[).
Definition
nonneg
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "def", "num_sem" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
real1 (op1 : interval int -> interval int) (x : Itv.t) : Itv.t
:= match x with Itv.Top => Itv.Top | Itv.Real x => Itv.Real (op1 x) end.
Definition
real1
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "int", "interval" ]
a few lifting helper functions
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
real2 (op2 : interval int -> interval int -> interval int) (x y : Itv.t) : Itv.t
:= match x, y with | Itv.Top, _ | _, Itv.Top => Itv.Top | Itv.Real x, Itv.Real y => Itv.Real (op2 x y) end.
Definition
real2
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "int", "interval" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
spec_real1 T f (op1 : T -> T) (op1i : interval int -> interval int) : forall (x : T), (forall xi, f xi x = true -> f (op1i xi) (op1 x) = true) -> forall xi, spec f xi x -> spec f (real1 op1i xi) (op1 x).
Proof. by move=> x + [//| xi]; apply. Qed.
Lemma
spec_real1
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "apply", "int", "interval", "real1", "spec" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
spec_real2 T f (op2 : T -> T -> T) (op2i : interval int -> interval int -> interval int) (x y : T) : (forall xi yi, f xi x = true -> f yi y = true -> f (op2i xi yi) (op2 x y) = true) -> forall xi yi, spec f xi x -> spec f yi y -> spec f (real2 op2i xi yi) (op2 x y).
Proof. by move=> + [//| xi] [//| yi]; apply. Qed.
Lemma
spec_real2
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "apply", "int", "interval", "real2", "spec" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d
"{ 'itv' R & i }"
:= (def (@num_sem R) (Itv.Real i%Z)) : type_scope.
Notation
{ 'itv' R & i }
algebra
algebra/interval_inference.v
[ "HB", "structures", "mathcomp", "ssreflect", "ssrfun", "ssrbool", "ssrnat", "eqtype", "choice", "order", "interval", "ssralg", "orderedzmod", "numdomain", "numfield", "ssrint", "Order.TTheory", "Order.Syntax", "GRing.Theory", "Num.Theory", "Itv.Exports", "canonicals", "Ty...
[ "def", "num_sem" ]
https://github.com/math-comp/math-comp
91d97df9cf3204b4dab84f4e24bc633e84b6473d