lean

lean

Assume in lean 4

Difference between let and have keywords in lean 4

erase common constant of equation using leanprover

Can't import Lean 4 packages

Can I define assumptions in lean?

How to do cases on a function between finite types?

infix notation in Lean

Combining two simple assumptions in Lean

Dealing with Laws of Excluded Middle in Lean

Comparing equal types in a definition

rw expression IN expression

Is there a way to call a function recursively from tactic mode or from match expressions in Lean?

Is there a tactic for solving such trivial goals (lean theorem proving)?

turn proofs for nat into proofs for non-negative ints

How to prove example in Lean?

Quickly simplifying the expression 'ite ("a"="b") x y'

Nested pattern matching in Lean for destructing hypothesis

Proving that two strings are different in Lean

Problem with types in a definition in lean

How do I easily rewrite nat.succ (nat.succ 0) as 2?

Resolving goals containing existential quantifiers

Run a automatic proof checking program in Lean from terminal

TPIL 4.4: example : ¬ (∃ x, ¬ p x) → (∀ x, p x)

TPIL 4.4: example : ¬ (∀ x, ¬ p x) → (∃ x, p x)

How to switch to HoTT-mode for Lean 2 in Emacs

Difference between the curly and round brackets for propositions in a theorem

How to remove a universal quantifier in Lean?

Lean: define product of R-ideal and R-module

Definition of choice in Lean

Does lean have syntax for declaration of signatures?

What is the difference between Type and Type*?

Proving property of recursive function

Representing a theorem with multiple hypotheses in Lean (propositional logic)

Recovering nat from a positive integer in Lean

Dependently typed bounded range in Lean

Painless way to show simple inequality over whole number

Why both the typeclass and implicit argument mechanism?

Use obtain in tactic mode in Lean theorem prover

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