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/- Copyright (c) 2014 Jeremy Avigad. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jeremy Avigad, Leonardo de Moura, Michael Howes -/ import algebra.group.conj import algebra.group.type_tags import algebra.group.with_one.basic import algebra.hom.units /-! # Various m...
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import Std.Data.PersistentHashMap new_frontend open Std def m : PersistentHashMap Nat Nat := let m : PersistentHashMap Nat Nat := {}; m.insert 1 1 def natDiffHash : Hashable Nat := ⟨fun n => USize.ofNat $ n+10⟩ -- The following example should fail since the `Hashable` instance used to create `m` is not `natDiffHash` ...
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-- System Model record SystemType := mk :: (Contexts : Type) (Stakeholders : Type) (Phases : Type) (ArtifactType: Type) (ValueType: Type) /- A system instance models a system of a particular type in a particular state. The state includes the current context and phase, the current state of the artifact itself, and th...
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/- Copyright (c) 2014 Jeremy Avigad. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jeremy Avigad, Mario Carneiro -/ import tactic.interactive logic.basic data.sum data.set.basic algebra.order open function /- TODO: automatic construction of dual definitions / theorem...
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/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Johan Commelin, Mario Carneiro -/ import data.mv_polynomial.monad import data.set.disjointed /-! # Degrees and variables of polynomials This file establishes many re...
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/- Copyright (c) 2019 Koundinya Vajjha. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Koundinya Vajjha The fabstract user attribute. -/ import tactic.metadata import system.io open interactive interactive.types lean.parser tactic native io @[user_attribute] meta d...
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/- Copyright (c) 2019 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import data.equiv.basic import tactic.tauto /-! # Local equivalences This files defines equivalences between subsets of given types. An element `e` of `local_...
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import data.set /- The Lean simplifer can be also use to "flatten" nested application of associative operators, and "sort" associative/commutative ones. The Lean simplifier can be viewed as a ordered rewriting system. It can be customized with user provided lemmas. It is well-known that we can use ordered rewriting ...
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/- Copyright (c) 2016 Jeremy Avigad. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jeremy Avigad The integers, with addition, multiplication, and subtraction. -/ prelude import init.data.nat.lemmas init.meta.transfer open nat /- the type, coercions, and notation -/ ...
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/- Copyright (c) 2018 Jan-David Salchow. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jan-David Salchow Sequences in topological spaces. In this file we define sequences in topological spaces and show how they are related to filters and the topology. In particular,...
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/- Copyright (c) 2021 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import algebraic_geometry.presheafed_space.has_colimits import category_theory.limits.shapes.binary_products import category_theory.limits.preserves.shapes.pullbacks import...
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import core.generated import algebra.interval import data.finset import data.list.sorted import move open [class] classical open core open eq.ops open list open list.prefixeq open nat open interval open option open partial open prod.ops open set -- doesn't seem to get picked up by class inference definition inv_imag...
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/- Copyright (c) 2021 Anatole Dedecker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anatole Dedecker, Eric Wieser -/ import analysis.specific_limits.basic import analysis.analytic.basic import analysis.complex.basic import data.nat.choose.cast import data.finset.non...
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/- Copyright (c) 2020 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ import Lean.Parser.Command import Lean.Meta.Closure import Lean.Meta.SizeOf import Lean.Meta.Injective import Lean.Meta.Structure import Lean.Meta.AppBuilde...
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/- Copyright (c) 2020 Floris van Doorn. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Floris van Doorn -/ import data.list.nodup /-! # Finite products of types This file defines the product of types over a list. For `l : list ι` and `α : ι → Type*` we define `list.t...
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/- Copyright (c) 2020 Yury G. Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Yury G. Kudryashov -/ import measure_theory.set_integral import measure_theory.lebesgue_measure import analysis.calculus.deriv /-! # Integral over an interval In this file we defi...
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/- Copyright (c) 2018 Patrick Massot. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Johannes Hölzl -/ import algebra.ring.prod import ring_theory.ideal.quotient import ring_theory.subring.basic import topology.algebra.group /-! # Topological (semi)ri...
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/- Copyright (c) 2020 Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Zhouhang Zhou -/ import measure_theory.bochner_integration import measure_theory.lebesgue_measure /-! # Set integral This file is temporarily commented out because of an ongoing refac...
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/- Copyright (c) 2019 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Sebastian Ullrich, Leonardo de Moura -/ prelude import Init.Data.Array import Init.Lean.Data.Name import Init.Lean.Data.Format namespace Lean structure SourceInfo := /- Will be ...
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/- Copyright (c) 2022 Yaël Dillies, Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yaël Dillies, Bhavik Mehta -/ import data.set.equitable import order.partition.finpartition /-! # Finite equipartitions This file defines finite equipartitions, the parti...
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import data.fin section rot open nat fin eq.ops algebra open eq.ops definition rotr₀ {n : nat} : fin n → fin n := match n with | 0 := take i, elim0 i | (succ k) := madd (-maxi) end definition rotr₁ {n : nat} : fin n → fin n := match n with | zero := take i, elim0 i | (succ k) := madd (-maxi) end definiti...
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/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl -/ import tactic.lint import tactic.ext import tactic.simps open function namespace subtype variables {α : Sort*} {β : Sort*} {γ : Sort*} {p : α → Prop} {q : α → Prop}...
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universe u inductive vector (α : Type u) : nat → Type u | nil {} : vector 0 | cons : Π {n}, α → vector n → vector (n+1) namespace vector local notation h :: t := cons h t #check @vector.cases_on -- Π {α : Type} -- {C : Π (a : ℕ), vector α a → Type} -- {a : ℕ} -- (n : vector α a), -- (e1 : C 0...
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/- Copyright (c) 2017 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Tim Baumann, Stephen Morgan, Scott Morrison Defines a functor between categories. (As it is a 'bundled' object rather than the `is_functorial` typeclass parametrised by the underlyin...
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opaque bar : Nat → Nat theorem foo : bar (Nat.succ a) = 0 := sorry example : bar (a + 1) = 0 := by with_reducible exact foo -- ok example : bar (a + a + 1) = 0 := by with_reducible exact foo -- should also work def factorial : Nat → Nat | 0 => 1 | n + 1 => (n + 1) * factorial n example (a : Nat) : factorial (a + ...
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/- Copyright (c) 2020 Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta -/ import category_theory.adjunction import category_theory.limits.shapes.equalizers import category_theory.limits.shapes.kernel_pair /-! # Reflexive coequalizers We defin...
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/- Copyright (c) 2019 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import data.fintype.basic import category_theory.discrete_category /-! # Finite categories A category is finite in this sense if it has finitely many objects, and f...
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/- Copyright (c) 2019 Mathlib Authors. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Mario Carneiro, Wojciech Nawrocki -/ import data.num.basic /-! # Binary tree Provides binary tree storage for values of any type, with O(lg n) retrieval. See also `data.rbtree` for...
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import game.world10.level5 -- hide namespace mynat -- hide /- # Inequality world. ## Level 6: `le_antisymm` In Advanced Addition World you proved `eq_zero_of_add_right_eq_self (a b : mynat) : a + b = a → b = 0`. This might be useful in this level. -/ /- Lemma $\le$ is antisymmetric. In other words, if $a\le b$ ...
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/- A development of first-order logic in Lean. * The object theory uses classical logic * We use de Bruijn variables. * We use a deep embedding of the logic, i.e. the type of terms and formulas is inductively defined. * There is no well-formedness predicate; all elements of type "term" are well-formed. -/ import .to_...
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/- Copyright (c) 2016 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ prelude import init.meta.tactic init.data.option.instances meta constant mk_nat_val_ne_proof : expr → expr → option expr meta constant mk_nat_val_lt_proof ...
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/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl Extends theory on products -/ universes u v variables {α : Type u} {β : Type v} -- copied from parser @[simp] lemma prod.mk.eta : ∀{p : α × β}, (p.1, p.2) = p | (a, b...
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/- Copyright (c) 2014 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Leonardo de Moura, Jeremy Avigad -/ prelude import init.num init.wf definition pair := @prod.mk notation A × B := prod A B -- notation for n-ary tuples notation `(` h `,` t:(fol...
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/- Copyright (c) 2016 Jeremy Avigad. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro, Johannes Hölzl -/ import algebra.ordered_monoid /-! # Ordered groups This file develops the basics of ordered groups. ## Implementat...
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/- Copyright (c) 2018 Patrick Massot. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Johannes Hölzl Uniform structure on topological groups: * `topological_add_group.to_uniform_space` and `topological_add_group_is_uniform` can be used to construct a...
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example (a b c : nat) : a = b → b = c → c = a := by { intros, apply eq.symm, apply eq.trans, assumption, assumption } example (a b c : nat) : a = b → b = c → c = a := by intros; apply eq.symm; apply eq.trans; repeat {assumption} example (p q r : Prop) : p → q → r → p ∧ q ∧ r ∧ p ∧ q := by intros; repeat {as...
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open unsigned list meta definition e1 := expr.app (expr.app (expr.const `f []) (expr.mk_var 1)) (expr.const `a []) meta definition e1' := expr.app (expr.app (expr.const `f []) (expr.mk_var 1)) (expr.const `a []) meta definition tst : e1 = e1' := rfl #eval e1 #eval expr.fold e1 (0:nat) (λ e d n, n+1) meta definiti...
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def main (xs : List String) : IO Unit := let ys1 := List.replicate 1000000 1; let ys2 := List.replicate 1000000 2; IO.println (toString (ys1 ++ ys2).length)
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import c0.ast logic.function.basic util.basic namespace c0 open ast function def main := "main" namespace type def small : type → Prop | (struct _) := false | _ := true end type namespace binop inductive ok : binop → type → type → Prop | add : ok add type.int type.int | sub : ok sub type.int type.int |...
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/- Copyright (c) 2023 Rémy Degenne. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Rémy Degenne -/ import probability.kernel.measurable_integral /-! # Product and composition of kernels We define * the composition-product `κ ⊗ₖ η` of two s-finite kernels `κ : kernel...
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import data.set.basic import data.set.lattice /- Первые несколько строк файла на Lean импортируют нужные файлы. Если вы скачали репозиторий с помощью `leanproject`, то у вас автоматически в _target/deps/mathlib установлена библиотека mathlib: GitHub: https://github.com/leanprover-community/mathlib Документация: https:...
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/- Copyright (c) 2022 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import algebraic_geometry.morphisms.basic import topology.local_at_target /-! # Universally closed morphism A morphism of schemes `f : X ⟶ Y` is universally closed if `X ...
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/- page 9 -/ import standard -- BEGIN theorem and_commutative (p q : Prop) : p ∧ q → q ∧ p := assume Hpq : p ∧ q, have Hp : p, from and.elim_left Hpq, have Hq : q, from and.elim_right Hpq, show q ∧ p, from and.intro Hq Hp -- END
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/- Copyright (c) 2019 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ prelude import Init.Lean.Meta.Basic import Init.Lean.Meta.LevelDefEq namespace Lean namespace Meta /-- Aka user name -/ def getMVarTag (mvarId : MVarId) :...
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/- Copyright (c) 2019 Kenny Lau, Chris Hughes. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kenny Lau, Chris Hughes -/ import Mathlib.PrePort import Mathlib.Lean3Lib.init.default import Mathlib.data.finset.order import Mathlib.linear_algebra.direct_sum_module import ...
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import standard open subtype nonempty namespace hide -- BEGIN axiom indefinite_description {A : Type} {P : A → Prop} (H : ∃ x, P x) : {x : A | P x} -- END end hide
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/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel, Scott Morrison -/ import category_theory.limits.shapes.zero_morphisms import category_theory.limits.shapes.kernels import category_theory.abelian.basic import category_t...
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/- Copyright (c) 2019 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison -/ import data.fintype.basic import category_theory.discrete_category import category_theory.opposites /-! # Finite categories A category is finite in this sense if it...
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/- Copyright (c) 2020 Rémy Degenne. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Rémy Degenne, Sébastien Gouëzel -/ import analysis.normed_space.indicator_function import analysis.normed.group.hom import measure_theory.function.ess_sup import measure_theory.function....
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inductive foo | bar instance : has_coe_to_sort foo _ := ⟨λ _, unit⟩ set_option pp.all true example : true := begin let x : foo.bar := (), have y : foo.bar := (), suffices z : foo.bar, trivial, exact (), end example : true := let x : foo.bar := () in have y : foo.bar, from (), trivial example : foo.bar → ...
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/- Copyright (c) 2018 Kenny Lau. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Kenny Lau Equivalences between finite numbers. -/ import data.fin data.equiv.basic variables {m n : ℕ} def fin_zero_equiv : fin 0 ≃ empty := ⟨fin_zero_elim, empty.elim, assume a, fin_zero...
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/- Copyright © 2020 Nicolò Cavalleri. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Nicolò Cavalleri -/ import geometry.manifold.times_cont_mdiff_map /-! # Smooth monoid A smooth monoid is a monoid that is also a smooth manifold, in which multiplication is a smooth ...
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/- Copyright (c) 2014 Jeremy Avigad. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors Jeremy Avigad, Leonardo de Moura, Johannes Hölzl -- QUESTION: can make the first argument in ∀ x ∈ a, ... implicit? -/ import logic.basic data.set -- from the library in the main repo ...
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/- Copyright (c) 2022 Yaël Dillies, Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yaël Dillies, Bhavik Mehta -/ import algebra.algebra.basic import algebra.order.nonneg /-! # Nonnegative rationals This file defines the nonnegative rationals as a subtyp...
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import Lean set_option linter.missingDocs false set_option linter.all true def explicitlyUsedVariable (x : Nat) : Nat := x theorem implicitlyUsedVariable : P ∧ Q → Q := by intro HPQ have HQ : Q := by exact And.right HPQ assumption axiom axiomVariable (x : Prop) : True def unusedVariables (x : Nat) : Nat :=...
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/- Copyright (c) 2019 Simon Hudon. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Simon Hudon -/ import algebra.order_functions namespace tactic.interactive open tactic list open lean lean.parser interactive open interactive.types @[derive inhabited] structure mono_cf...
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import Mathlib.PrePort import Mathlib.Lean3Lib.init.default import Mathlib.data.padics.padic_integers import Mathlib.PostPort namespace Mathlib end Mathlib
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import data.fintype universes u v @[derive decidable_eq] inductive pempty : Type u instance pempty_fintype : fintype pempty := { elems := [].to_finset, complete := begin intros, cases x, end } def empty_function {α : Sort u} : empty → α := begin intros, cases a, end def empty_dep...
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/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro -/ import topology.continuous_on import group_theory.submonoid.basic import algebra.group.prod import algebra.pointwise /-! # Theory of topological mono...
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/- Copyright (c) 2017 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Gabriel Ebner -/ import data.buffer data.dlist universes u v inductive parse_result (α : Type u) | done (pos : ℕ) (result : α) : parse_result | fail (pos : ℕ) (expected : dlist...
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variables p q : Prop example (h : p ∧ q) : q ∧ p := ⟨h.right, h.left⟩
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import init.data.nat.basic import init.data.fin.basic import data.vector import .Prelude open Staged open nat open fin open vector section CommutativeAdditiveMagma structure CommutativeAdditiveMagma (A : Type) : Type := (plus : (A → (A → A))) (commutative_plus : (∀ {x y : A} , (plus x y) = (plus y ...
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/- Copyright (c) 2021 Anne Baanen. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anne Baanen -/ import algebra.absolute_value import algebra.algebra.basic import data.int.cast import group_theory.group_action.units /-! # Absolute values and the integers This file co...
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/- Copyright (c) 2018 Robert Y. Lewis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Robert Y. Lewis, Chris Hughes -/ import algebra.associated import algebra.big_operators.basic import ring_theory.valuation.basic /-! # Multiplicity of a divisor For a commutative mo...
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/- Copyright (c) 2019 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ prelude import Init.Lean.ProjFns import Init.Lean.Meta.WHNF import Init.Lean.Meta.InferType import Init.Lean.Meta.FunInfo import Init.Lean.Meta.LevelDefEq i...
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example (h : p) : p := h -- Application of reiteration.
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/- Copyright (c) 2020 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta, Scott Morrison -/ import category_theory.subobject.factor_thru import category_theory.subobject.well_powered /-! # The lattice of subobjects We provide the `semilattice...
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/- Copyright (c) 2022 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import tactic.elementwise import category_theory.limits.has_limits import category_theory.limits.shapes.kernels /-! In this file we provide various simp lemmas in its elem...
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/- Formalizing algebraic structures. Typeclasses and group theory. See Collab site for details. -/
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import Lean.Meta open Lean open Lean.Meta def tst1 : MetaM Unit := withLocalDeclD `y (mkConst `Nat) $ fun y => do withLetDecl `x (mkConst `Nat) (mkNatLit 0) $ fun x => do { let mvar ← mkFreshExprMVar (mkConst `Nat) MetavarKind.syntheticOpaque; trace[Meta.debug] mvar; let r ← mkLambdaFVars #[y, x] mvar; trace[...
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/- Copyright (c) 2016 Jeremy Avigad. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jeremy Avigad, Leonardo de Moura -/ import tactic.doc_commands import tactic.reserved_notation /-! # Basic logic properties This file is one of the earliest imports in mathlib. ## Im...
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/- Copyright (c) 2018 Mario Carneiro. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Mario Carneiro, Robert Y. Lewis -/ import data.real.cau_seq /-! # Cauchy completion This file generalizes the Cauchy completion of `(ℚ, abs)` to the completion of a commutative ring ...
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/- Copyright (c) 2017 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Johannes Hölzl Countable sets. -/ import data.equiv.list data.set.finite logic.function data.set.function noncomputable theory open function set encodable open classical (hiding som...
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import category_theory.natural_transformation import category_theory.opposites import category_theory.types import category_theory.tactics.obviously universes u₁ v₁ open tactic def fyn_names := [ `category_theory.category.id, `category_theory.functor.map, `category_theory.nat_trans.app, `category_theory.c...
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/- Copyright (c) 2016 Johannes Hölzl. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Mario Carneiro -/ import data.option.defs import logic.nonempty import tactic.cache /-! # Miscellaneous function constructions and lemmas > THIS FILE IS SYNCHRONIZED ...
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/- Copyright (c) 2021 Bhavik Mehta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta -/ import data.set.lattice import order.zorn import tactic.by_contra /-! # Extend a partial order to a linear order This file constructs a linear order which is an extensi...
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/- Copyright (c) 2020 Yury Kudryashov. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yury Kudryashov -/ import algebra.group_power import algebra.group_power.basic import logic.function.iterate import group_theory.perm.basic /-! # Iterates of monoid and ring homomor...
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import tidy.lib.parser import .screening namespace tidy.rewrite_search.discovery open tactic open lean.parser open interactive.types meta def atrr_fail {α : Type} (attr : string) (reason : format) : tactic α := fail $ "[" ++ attr ++"] error: " ++ to_string reason private meta def bundle_fail {α : Type} : format → t...
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/- Copyright (c) 2020 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ import Lean.Data.Options /- Basic support for auto bound implicit local names -/ namespace Lean.Elab register_builtin_option autoBoundImplicitLocal : Boo...
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/- Copyright (c) 2015 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Jeremy Avigad Extensional equality for functions, and a proof of function extensionality from quotients. -/ prelude import init.data.quot init.logic universe variables u v nam...
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import Lean class CountParts_ (S : Type u) where μ : Type v α : Type w φ : S → μ → α instance : CountParts_ String where μ := Char α := Nat φ haystack needle := haystack.foldl (fun acc x => acc + if x == needle then 1 else 0) 0 class CountParts (S : Type u) (μ : Type v) (α : Type w) where φ : S → μ → α...
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/- Mor.lean -/ import Setoid import Cat namespace EXE /- - The category of morphisms -/ record MorType (C : CatType) : Type := (Dom : C) (Cod : C) (Hom : Dom ⇒C⇒ Cod) namespace Mor -- commutative squares abbreviation SquareProp (C : CatType) {X11 X12 X21 X22 : C} (m1x : X11 ⇒...
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/- Copyright (c) 2018 Simon Hudon. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Simon Hudon, Patrick Massot -/ import algebra.hom.group_instances import data.pi.algebra import data.set.function import data.set.pairwise import tactic.pi_instances /-! # Pi instances f...
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/- Copyright (c) 2020 Bhavik Mehta, Edward Ayers, Thomas Read. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Bhavik Mehta, Edward Ayers, Thomas Read -/ import category_theory.epi_mono import category_theory.limits.shapes.finite_products import category_theory.monoida...
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import ...phys.src.classical_time namespace lang.classicalTime structure var : Type := mk :: (num : ℕ) def varEq : var → var → bool | v1 v2 := v1.num=v2.num def env := (var → classicalTime) inductive expr | lit (v : classicalTime) | var (v : var) def init := λ v : var, worldTime end lang.classicalTime
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/- Copyright (c) 2017 Mario Carneiro. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Mario Carneiro -/ import data.array.lemmas import data.finset.pi import data.finset.powerset import data.sym.basic import data.ulift import group_theory.perm.basic import order.well_fo...
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/- Copyright (c) 2021 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ import Lean.Elab.Syntax namespace Lean.Elab.Command open Lean.Syntax open Lean.Parser.Term hiding macroArg open Lean.Parser.Command /- Convert `macro` arg...
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import game.world3.level2 -- hide import mynat.mul -- hide namespace mynat -- hide /- # Multiplication World ## Level 3: `one_mul` Currently our tools for multiplication are the following: * `mul_zero : ∀ m, m * 0 = 0` * `zero_mul : ∀ m, 0 * m = m` * `mul_succ : ∀ a b, a * succ b = a * b + b` * `mul_one ; ∀ m, m ...
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import clause prover_state import subsumption misc_preprocessing import resolution factoring clausifier superposition equality splitting import inhabited import selection open monad tactic expr declare_trace resolution set_option trace.resolution false meta def trace_clauses : resolution_prover unit := do state ← sta...
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/- Copyright (c) 2022 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import analysis.special_functions.trigonometric.deriv import measure_theory.function.jacobian /-! # Polar coordinates > THIS FILE IS SYNCHRONIZED WITH MATHLIB...
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/- Copyright (c) 2018 Rohan Mitta. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Rohan Mitta, Kevin Buzzard, Alistair Tucker, Johannes Hölzl, Yury Kudryashov -/ import logic.function.iterate import topology.metric_space.basic import category_theory.endomorphism import...
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/- Copyright (c) 2020 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ import Std.Data.HashSet import Std.Data.HashMap import Std.Data.PersistentHashMap import Std.Data.PersistentHashSet namespace Std universe u v namespace Sh...
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/- Copyright (c) 2019 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import data.equiv.local_equiv import topology.homeomorph /-! # Local homeomorphisms This file defines homeomorphisms between open subsets of topological space...
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-- Let's first prove some simple example lemmas with the logical connectives we learned in the lecture. section -- Variables in sections determine the type of certain variables for the remainder of the section, saving us a bit of space. variable (p q r : Prop) example : p → p := fun h => h example : p → (q → p) :=...
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/- Copyright (c) 2019 Reid Barton. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Reid Barton, Johan Commelin, Bhavik Mehta -/ import category_theory.equivalence import data.equiv.basic namespace category_theory open category -- declare the `v`'s first; see `category...
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/- Copyright (c) 2020 Ruben Van de Velde, Stanislas Polu. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Ruben Van de Velde, Stanislas Polu -/ import data.real.basic import analysis.normed_space.basic /-! # IMO 1972 Q5 Problem: `f` and `g` are real-valued functions ...
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/- Copyright (c) 2022 Andrew Yang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Andrew Yang -/ import order.compactly_generated import order.order_iso_nat import topology.sets.closeds /-! # Noetherian space A Noetherian space is a topological space that satisfies a...
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/- Copyright (c) 2020 Anne Baanen. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Anne Baanen. The Special Linear group $SL(n, R)$ -/ import linear_algebra.matrix import linear_algebra.nonsingular_inverse /-! # The Special Linear group $SL(n, R)$ This file de...