How to prove reverse nil is nil in Lean...

Isabelle Code Generation and Linear Order...

How to perform multiple exists-eliminations that all share a single multivariate universally-quantif...

How to use `exists.elim` in Lean?...

How can one prove (¬ ∀ x, p x) → (∃ x, ¬ p x) from first principles in LEAN?...

Coq : Admit assert...

Isabelle/HOL restrict codomain...

Why does `rewrite` of associativity fail in binomial theorem proof in LEAN?...

Simp does not use the provided lemma in Isabelle...

undefined in Isabelle/HOL...

How to prove two statements in propositional logic using LEAN?...

Isabelle/HOL Question about Sets of Tuples...

How to prove mathematical induction formulae in LEAN theorem prover?...

Coq: type mismatch on dependent lists which could be solved by a proof...

Induction issue...

Coq: prove that if (A, B) = (C, D) then A = C /\ B = D...

How do you read the coq quantifier `forall P: Set -> Prop`?...

Proving the false case of an if and only if in Agda...

Simple refl-based proof problem in Lean (but not in Agda)...

Coq theorem proving: Simple fraction law in peano arithmetic...

How does one properly simplify a coq goal with a previous lemma?...

Well-founded recursion in Lean...

ATS Proof: Why does this static if need greater than or equal to?...

How can i prove that cons after uncons over coinductive list(a.k.a Stream) are identity, in Agda?...

Basic Isabelle sequence limit proof...

Is this formalization of the empty set correct in Agda?...

Idris: Is there a way to reference an abstracted variable in an equality proof?...

How to use a refutation to direct the type checker in Haskell?...

In Coq, are there tactics for working with Rabs, Rineq?...

What kind of functions preserve properties of closure?...