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inductive Exp | var (i : Nat) | app (a b : Exp) with @[computed_field, extern c inline "(lean_ctor_get_uint64(#1, lean_ctor_num_objs(#1)*sizeof(void*)) + 40)"] hash : Exp → UInt64 | .var i => Hashable.hash i | .app a b => a.hash + b.hash def main : IO Unit := do -- should be 30 + 3*40 = 150 IO.prin...
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/- Copyright (c) 2020 Anne Baanen. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Anne Baanen, Kexing Ying, Eric Wieser -/ import algebra.invertible import linear_algebra.matrix.determinant import linear_algebra.matrix.bilinear_form /-! # Quadratic forms This file d...
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/- Copyright (c) 2022 Chris Birkbeck. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Chris Birkbeck, David Loeffler -/ import order.filter import algebra.module.submodule.basic import topology.algebra.monoid import analysis.asymptotics.asymptotics /-! # Zero and Boun...
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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 category_theory.glue_data import category_theory.concrete_category.elementwise import topology.category.Top.limits.pullbacks import topology.category.Top.opens /-! ...
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/- Copyright (c) 2020 Aaron Anderson. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Aaron Anderson -/ import algebra.big_operators.ring import number_theory.divisors import algebra.squarefree import algebra.invertible /-! # Arithmetic Functions and Dirichlet Convolut...
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/- Copyright (c) 2020 Jannis Limperg. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Jannis Limperg -/ import tactic.core /-! # The `unify_equations` tactic This module defines `unify_equations`, a first-order unification tactic that unifies one or more equations in ...
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example (xs : list ℕ) : ℕ := begin induction xs, case list.cons {} end example (xs : list ℕ) : ℕ := begin cases xs, case list.cons {} end example (xs : list ℕ) : ℕ := begin induction xs, case list.cons : x xs { cases xs, case list.cons : x xs {} } end open list example (xs : list ℕ) : ℕ := begi...
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-- Rewriting with (tmp)-local hypotheses import logic.quantifiers attribute imp_congr [congr] attribute forall_congr [congr] universe l constants (T : Type.{l}) (P Q : T → Prop) set_option simplify.max_steps 50000 constants (x y : T) #simplify iff env 0 x = y → x = y #simplify iff env 0 T → x = y → x = y #simplif...
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/- Copyright (c) 2015, 2017 Jeremy Avigad. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Metric spaces. Authors: Jeremy Avigad, Robert Y. Lewis, Johannes Hölzl, Mario Carneiro, Sébastien Gouëzel Many definitions and theorems expected on metric spaces are already introduced o...
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open nat inductive Expr | zero : Expr | one : Expr | add : Expr → Expr → Expr namespace Expr inductive direct_subterm : Expr → Expr → Prop | add_1 : ∀ e₁ e₂ : Expr, direct_subterm e₁ (add e₁ e₂) | add_2 : ∀ e₁ e₂ : Expr, direct_subterm e₂ (add e₁ e₂) theorem direct_subterm_wf : well_founded direct_subterm := sorr...
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import mynat.definition import mynat.add import mynat.mul lemma example2 (x y : mynat) (h : y = x + 7) : 2 * y = 2 * (x + 7) := begin rw h, refl, end
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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.Meta.Transform import Lean.Meta.Tactic.Replace import Lean.Meta.Tactic.Util import Lean.Meta.Tactic.Clear import Lean.Meta.Tactic.Simp.Types imp...
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/- Copyright (c) 2020 Robert Y. Lewis. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Robert Y. Lewis -/ import Mathlib.PrePort import Mathlib.Lean3Lib.init.default import Mathlib.tactic.linarith.elimination import Mathlib.tactic.linarith.parsing import Mathlib.PostPor...
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/- Copyright (c) 2021 Martin Zinkevich. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Martin Zinkevich, Vincent Beffara -/ import measure_theory.integral.set_integral import probability.independence /-! # Integration in Probability Theory Integration results for ind...
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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, Yaël Dillies -/ import order.locally_finite /-! # Intervals as finsets This file provides basic results about all the `finset.Ixx`, which are defined in `order.locall...
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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 Extended non-negative reals -/ import data.real.nnreal order.bounds tactic.norm_num noncomputable theory open classical set lattice local attribute [instance] prop_deci...
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import standard using tactic theorem tst {A : Type} {f : A → A → A} {a b c : A} (H1 : a = b) (H2 : b = c) : f a b = f b c := by apply congr; apply (subst H2); apply refl; assumption
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import Papyrus open Papyrus def assertEq [Repr α] [DecidableEq α] (expected actual : α) : IO (PLift (expected = actual)) := do if h : expected = actual then return PLift.up h else throw <| IO.userError s!"expected '{repr expected}', got '{repr actual}'" def assertBEq [Repr α] [BEq α] (expected actual : α) : IO...
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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: Mario Carneiro Ordinal arithmetic. Ordinals are defined as equivalences of well-ordered sets by order isomorphism. -/ import order.order_iso set_theory.cardinal data.sum noncomputable...
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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: Johannes Hölzl, Chris Hughes, Mario Carneiro, Yury Kudryashov -/ import algebra.group.prod import algebra.ring.basic import algebra.ring.equiv /-! # Semiring, ring etc structures on ...
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/- Copyright (c) 2021 Aaron Anderson. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Aaron Anderson -/ import order.well_founded_set import algebra.big_operators.finprod import ring_theory.valuation.basic import algebra.module.pi import ring_theory.power_series.basic i...
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/- Copyright (c) 2019 Neil Strickland. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Neil Strickland -/ import data.nat.choose data.fintype.basic import data.fin_extra import tactic.squeeze tactic.linarith namespace simplicial namespace infinite def δ (i j : ℕ) ...
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/- Copyright (c) 2021 Yourong Zang. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Yourong Zang -/ import analysis.normed_space.conformal_linear_map import analysis.inner_product_space.basic /-! # Conformal maps between inner product spaces > THIS FILE IS SYNCHRONIZE...
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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 -/ import algebra.ordered_group set_option default_priority 100 -- see Note [default priority] set_option old_structure_cmd true unive...
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-- Copyright (c) 2018 Scott Morrison. All rights reserved. -- Released under Apache 2.0 license as described in the file LICENSE. -- Authors: Scott Morrison, Mario Carneiro import tactic import data.option.defs open interactive namespace tactic /- This file defines a `chain` tactic, which takes a list of tactics, a...
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/- Copyright (c) 2018 Scott Morrison. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Scott Morrison, Johannes Hölzl, Reid Barton, Sean Leather, Yury Kudryashov -/ import category_theory.types import category_theory.full_subcategory /-! # Concrete categories A concret...
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def f (x : Nat) : Nat := match x with | 30 => 31 | y+1 => y | 0 => 10 #eval f 20 #eval f 0 #eval f 30 universes u theorem ex1 {α : Sort u} {a b : α} (h : a ≅ b) : a = b := match α, a, b, h with | _, _, _, HEq.refl _ => rfl theorem ex2 {α : Sort u} {a b : α} (h : a ≅ b) : a = b := match a, b, h with | _, _, HEq...
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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 topology.separation /-! # Sober spaces > THIS FILE IS SYNCHRONIZED WITH MATHLIB4. > Any changes to this file require a corresponding PR to mathlib4. A quasi-sober...
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/- Copyright (c) 2020 Anatole Dedecker. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot, Anatole Dedecker -/ import topology.separation /-! # Extending a function from a subset The main definition of this file is `extend_from A f` where `f : X → Y` and ...
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/- Copyright (c) 2020 Marc Huisinga. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Marc Huisinga, Wojciech Nawrocki -/ import Lean.Server.Utils import Lean.Server.AsyncList import Lean.Server.Snapshots import Lean.Server.FileSource import Lean.Server.Watchdog import ...
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# Build Firmware: CONFIG_TARGET_armvirt=y CONFIG_TARGET_armvirt_64=y CONFIG_TARGET_armvirt_64_Default=y CONFIG_aarch64=y CONFIG_ARCH="aarch64" # 不压缩efi 不用ntfs分区 # CONFIG_TARGET_IMAGES_GZIP is not set # CONFIG_VMDK_IMAGES is not set # CONFIG_PACKAGE_kmod-fs-ntfs is not set # ipv6 CONFIG_PACKAGE_ipv6helper...
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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 category_theory.limits.shapes.products import category_theory.discrete_category import data.fintype universes v u open category_theory namespace category_the...
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/- Copyright (c) 2018 Kenny Lau. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kenny Lau -/ import data.nat.choose.sum import data.equiv.ring import algebra.algebra.operations import ring_theory.ideal.basic /-! # More operations on modules and ideals -/ universes u v ...
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-- more things related to the propositional truncation file import .propositional_truncation cubical.squareover open one_step_tr equiv eq sigma definition one_step_tr_up (A B : Type) : (one_step_tr A → B) ≃ Σ(f : A → B), Π(x y : A), f x = f y := begin fapply equiv.MK, { intro f, fconstructor, intro a, exact f ...
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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 algebra.big_operators.intervals import topology.instances.real import topology.algebra.module import data.indicator_function import data.equiv.encodable.lattic...
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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, Jeremy Avigad, Yury Kudryashov -/ import order.filter.cofinite /-! # Ultrafilters An ultrafilter is a minimal (maximal in the set order) proper filter. In this file w...
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example : False := have False from _ example : 5 = 3 := have t : True := _ have f : 5 = 6 := _ f
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/- Meta programming in Lean -/ /- The central type to represent the logical content is `expr`, together with `name` and `level`. `expr` are expressions (e.g. terms, types & proofs) `name` used to reference constants & local hypothesis, etc pretty printed names, name spaces names, internal unique names `level` expr...
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/- Copyright (c) 2022 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura -/ import Lean.Compiler.LCNF.PassManager namespace Lean.Compiler.LCNF abbrev BaseExtState := PHashMap Name Decl private abbrev declLt (a b : Decl) := Name...
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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 Define the p-adic valuation on ℤ and ℚ, and the p-adic norm on ℚ -/ import data.rat data.int.gcd algebra.field_power import tactic.wlog tactic.ring universe u open ...
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/- Copyright (c) 2018 Kenny Lau. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kenny Lau, Chris Hughes, Mario Carneiro -/ import algebra.algebra.basic import algebra.category.Ring.basic import ring_theory.ideal.operations /-! # Local rings Define local rings as co...
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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 order.lattice import data.option.basic import tactic.pi_instances import logic.nontrivial /-! # ⊤ and ⊥, bounded lattices and variants This file defines top ...
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structure ParamType where /-- Name of the type, used when displaying the help. -/ name : String /-- Function to check whether a value conforms to the type. -/ isValid : String → Bool structure Flag where /-- Designates `x` in `-x`. -/ shortName? : Option String := none /-- Designates `x` in `--x`. -/...
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/- Copyright (c) 2021 Rémy Degenne. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Rémy Degenne -/ import analysis.inner_product_space.basic import measure_theory.integral.set_integral /-! # `L^2` space If `E` is an inner product space over `𝕜` (`ℝ` or `ℂ`), then `L...
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/- In this example, we demonstrate how to add tracing to the tactic implemented in the file back.lean. We also use quotations to build terms. -/ open list expr tactic universe variable u /- We change the implicit arguments of in_tail and in_head. The goal is to allow us to create in_tail and in_head applicat...
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-- Test for --dir option, to be able to execute this file, we must provide --dir=<path-to-nat-lib> in the command line import .div open nat check nat.div
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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 Empty structure Empty : Type open Empty end Empty
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definition bla (a : nat) := a meta definition foo (a : nat) := bla a meta constant A : nat
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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, Johannes Hölzl Multivariable polynomials on a type is the left adjoint of the forgetful functor from commutative rings to types. -/ import algebra.CommRing.basic impo...
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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 Inverse structure Inverse (A : Type) : Type := (inv : (A → A)) (e : A) (op : (A → (A → A))) (leftInverse_inv_op_e : (∀ {x : A} , (op x (inv x)) = ...
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import field_theory.splitting_field ring_theory.polynomial import data.polynomial universes u variables {α : Type u} [field α] def adjoin_all_roots (f : polynomial α) : Type u := sorry variables (β : Type u) (f : polynomial α) variables [field β] variables [algebra α β] def is_splitting_field (f : polynomial α)...
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/- Copyright (c) 2018 Mario Carneiro. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Mario Carneiro Ordinal notations (constructive ordinal arithmetic for ordinals < ε₀). -/ import set_theory.ordinal data.pnat open ordinal local notation `ω` := omega.{0} /-- Recursiv...
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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, Sebastian Ullrich -/ prelude import Init.Lean.Parser.Term namespace Lean namespace Parser namespace Tactic def underscoreFn : ParserFn := fun c s => let s...
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/- Copyright (c) 2019 Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Zhouhang Zhou -/ import algebra.quadratic_discriminant import analysis.special_functions.pow import tactic.monotonicity /-! # Inner Product Space This file defines real inner product...
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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 Helper tactic for constructing has_sizeof instance. -/ prelude import init.meta.rec_util init.meta.constructor_tactic namespace tactic open expr environment ...
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/- Copyright (c) 2018 Mario Carneiro. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Mario Carneiro The primitive recursive functions are the least collection of functions nat → nat which are closed under projections (using the mkpair pairing function), composition, ze...
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-- import system.io import tactic -- import data.equiv.basic #print proof_irrel def f (p q : Prop) : p ∨ q → ℕ | (or.inl _) := 0 | (or.inr _) := 1 def f (x : Π {n : ℕ}, n < 0) : ℕ := sorry def g (x : Π {n : ℕ}, n < 0) : ℕ := f x -- example (α β γ δ ε: Type*) [unique β] [unique γ] [unique δ] [unique ε] -- :...
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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 -/ prelude universes u v w @[inline] def id {α : Sort u} (a : α) : α := a /- `idRhs` is an auxiliary declaration used to implement "smart unfolding". It is ...
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import game.world5.level4 -- hide import game.world2.level14 namespace mynat -- hide /- # World 5 : Inequality world ## Level 6 : `le_antisymm` In this level, it would be helpful if you knew about how to create extra hypotheses in the middle of a proof. Say you have a hypothesis `h : a + b = a` and you remember b...
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/- Copyright (c) 2019 Johan Commelin. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johan Commelin -/ import data.rat.basic import tactic.linarith import tactic.omega /-! # IMO1988 Q6 and constant descent Vieta jumping Question 6 of IMO1988 is somewhat (in)famous. ...
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import Monads.Functor import Monads.Applicative import Monads.Monad namespace Monads inductive Maybe (α : Type u) where | none : Maybe α | some : α → Maybe α deriving Repr namespace Maybe section Functor def map {α β : Type u} : (α → β) → Maybe α → Maybe β | f, none => none | f, (so...
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/- Copyright (c) 2016 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Leonardo de Moura -/ prelude import init.data.list.basic init.data.char.basic init.data.option.basic universes u structure String := (data : List Char) abbrev String.Pos := Nat...
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import Geo.Geo.Core namespace Geo open Angle Line Quadrilateral open Seg (cong) def IMO_2003_P4 : Prop := ∀ (A B C D : Point), cyclic ⟨A, B, C, D⟩ → let P := foot D ⟨A, B⟩; let Q := foot D ⟨B, C⟩; let R := foot D ⟨C, A⟩; allIntersect [bisector ⟨A, B, C⟩, bisector ⟨C, D, A⟩, Line.mk A C] ↔ cong ⟨R, P⟩ ⟨R, Q⟩ end Geo...
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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, Bhavik Mehta -/ import category_theory.monad.basic import category_theory.adjunction.basic import category_theory.functor.epi_mono /-! # Eilenberg-Moore (co)algebras f...
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variable {A : Type} definition id (a : A) := a check @id inductive list := nil : list, cons : A → list → list check @list.cons
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import game.world3.level6 -- hide namespace mynat -- hide /- # Multiplication World ## Level 7: `add_mul` We proved `mul_add` already, but because we don't have commutativity yet we also need to prove `add_mul`. We have a bunch of tools now, so this won't be too hard. You know what -- you can do this one by inductio...
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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: Sebastian Ullrich -/ import Lean.Data.Name import Lean.Data.Options import Lean.Data.Format namespace Lean /-! Remark: `MonadQuotation` class is part of the `Init` package and ...
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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 pullbacks import comma import category_theory.opposites universes u v namespace category_theory open category_theory.limits variables {C : Type u} [𝒞 : catego...
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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 Integer power operation on fields. -/ import algebra.group_power algebra.ordered_field import tactic.wlog tactic.linarith universe u section field_power open int n...
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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: Mario Carneiro -/ import set_theory.ordinal /-! # Ordinal arithmetic Ordinals have an addition (corresponding to disjoint union) that turns them into an additive monoid, and a multipl...
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/- Copyright (c) 2014 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Leonardo de Moura, Jeremy Avigad, Floris van Doorn -/ prelude import init.datatypes notation `assume` binders `,` r:(scoped f, f) := r notation `take` binders `,` r:(scoped f...
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/- Copyright (c) 2019 Johannes Hölzl, Zhouhang Zhou. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johannes Hölzl, Zhouhang Zhou -/ import measure_theory.integration import order.filter.germ /-! # Almost everywhere equal functions Two measurable functions are treat...
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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 topology.topological_fiber_bundle import geometry.manifold.smooth_manifold_with_corners /-! # Basic smooth bundles In general, a smooth bundle is a bund...
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/- BACK TO PROPERTIES OF RELATIONS -/ /- So now let's revisit once again our funny example of transitivity: { (0,1), (2,3) }. There are no cases here where we have both (x,y) and (y,z) as pairs in this relation, so there are no cases to consider. When there are no cases to consider, the conclusion holds in all cases...
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/- Copyright (c) 2021 Sébastien Gouëzel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Sébastien Gouëzel -/ import algebra.indicator_function import topology.continuous_on import topology.instances.ennreal /-! # Semicontinuous maps > THIS FILE IS SYNCHRONIZED WITH M...
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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 Extra notation that depends on Init/Meta -/ prelude import Init.Meta import Init.Data.Array.Subarray import Init.Data.ToString namespace Lean syntax "Macro.t...
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/- Each fabstract contains a list of results. The following type lists the various kinds of results. You may read the values as follows: * `Proof p` -- the paper contains the proof `p` * `Construction c` -- the paper contains the construction `c` * `Conjecture C` -- the paper contains the conjecture `C` ...
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import data.finset.basic open finset check ∅ -- o.k. check λs t, subset s t -- o.k. check λs t, s ⊆ t -- fixed infix `⊆` := subset check λs t, s ⊆ t
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import Cli open Cli def doNothing (p : Parsed) : IO UInt32 := return 0 def runExampleCmd (p : Parsed) : IO UInt32 := do let input : String := p.positionalArg! "input" |>.as! String let outputs : Array String := p.variableArgsAs! String IO.println <| "Input: " ++ input IO.println <| "Outputs: " ++ t...
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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: Gabriel Ebner -/ import Lean open Lean Elab PrettyPrinter partial def getCommands (cmds : Syntax) : StateT (Array Syntax) Id Unit := do if cmds.getKind == nullKind || cmds.ge...
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import algebra.category.CommRing.basic import algebra.ring /-- ## This is the groupe AGL_1(R) : x ↦ ax + b invertible i.e with a inveritible ! The goal is to make ## into a groupe for composition ! -/ structure AGL_1 ( R : Type) [comm_ring R] := mk {} :: (a b : R) (y : R) (certif : a * y = 1) namespace AGL_1 se...
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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 analysis.calculus.mean_value analysis.complex.exponential /-! # Grönwall's inequality The main technical result of this file is the Grönwall-like inequalit...
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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, Kevin Kappelmann -/ import tactic.linarith import tactic.abel import algebra.ordered_group import data.set.intervals.basic /-! # Floor and ceil ## Summary We define ...
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/- Copyright (c) 2020 Kyle Miller All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Kyle Miller -/ import data.multiset.basic import data.vector.basic /-! # Symmetric powers This file defines symmetric powers of a type. The nth symmetric power consists of homogeneous ...
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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 -/ universes u namespace Lean inductive LOption (α : Type u) | none : LOption | some : α → LOption | undef : LOption namespace LOption variables {α : Type...
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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 -/ import algebra.order.ring.defs import algebra.order.sub.canonical import group_theory.group_action.defs /-! # Canoncially ordered ri...
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-- namespace foo constant f : nat → nat constant g : nat → nat end foo namespace boo constant f : nat → nat end boo open foo boo #check ``f #check ``g open int #check ``has_add.add #check ``nat_abs #check `f #check `foo.f namespace bla section parameter A : Type definition ID : A → A := λ x, x #check...
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open tactic constant my_ite (c : Prop) {A : Type*} (t : A) : A @[simp] lemma my_ite_true {A : Type*} (t : A) : @my_ite true A t = t := sorry def my_true_def : Prop := true @[simp] lemma m_true_def_true : my_true_def = true := rfl constant my_true : Prop @[simp] lemma m_true_true : my_true = true := sorry example (n...
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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 Converter monad for building simplifiers. -/ prelude import init.meta.tactic init.meta.simp_tactic import init.meta.congr_lemma init.meta.match_tactic open ta...
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/- Copyright (c) 2016 Microsoft Corporation. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Author: Leonardo de Moura -/ prelude import init.data.nat.basic open nat /-- `fin n` is the subtype of `ℕ` consisting of natural numbers strictly smaller than `n`. -/ structure fin (n :...
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-- Copyright (c) 2016 Microsoft Corporation. All rights reserved. -- Released under Apache 2.0 license as described in the file LICENSE. -- Author: Leonardo de Moura prelude import init.string /- This function has a native implementation that tracks time. -/ definition timeit {A : Type} (s : string) (f : unit → A) : A...
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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.Meta.Tactic.Injection import Lean.Elab.Tactic.ElabTerm namespace Lean.Elab.Tactic -- optional (" with " >> many1 ident') private def getInjecti...
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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 topology.sets.opens /-! # Properties of maps that are local at the target. We show that the following properties of continuous maps are local at the target : - `in...
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/- Copyright (c) 2018 Keeley Hoek. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Johan Commelin, Keeley Hoek, Scott Morrison -/ import tactic.nth_rewrite.congr /-! # Advanced rewriting tactics This file provides three interactive tactics that give the user more con...
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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.dlist import tactic.core import tactic.clear /-! # Recursive cases (`rcases`) tactic and related tactics `rcases` is a tactic that will perform `cases`...
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/- Copyright (c) 2020 Aaron Anderson. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Aaron Anderson -/ import data.multiset.lattice import algebra.gcd_monoid /-! # GCD and LCM operations on multisets ## Main definitions - `multiset.gcd` - the greatest common denomin...
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example : ∀ (l : list ℕ), list.append l (0 :: list.nil) ≠ list.nil := by intros; induction l; simp *
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/- Copyright (c) 2020 Markus Himmel. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Markus Himmel, Scott Morrison -/ import algebra.homology.exact import category_theory.types import category_theory.limits.shapes.biproducts import category_theory.preadditive.yoneda imp...
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/- Copyright (c) 2021 Patrick Massot. All rights reserved. Released under Apache 2.0 license as described in the file LICENSE. Authors: Patrick Massot -/ import topology.algebra.ordered.basic import algebra.order.with_zero /-! # The topology on linearly ordered commutative groups with zero Let `Γ₀` be a linearly ord...