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?...

Transform `not A` into `A -> False` in Coq...

Simple equality proofs on lists in idris (prooving xs ++ [x] = ys ++ [y] -> x = y -> xs = ys)...

Why is pattern matching sometimes "essential" in Agda?...

Why doesn't this proof require extensionality? (Agda)...

Induction on a datatype with non-uniform type parameters produces ill-typed terms...

A suspicious Isomorphism proof...

Superposition calculus and ordering of equations...

Proving that a reversible list is a palindrome in Coq...

Understanding the induction on evidence in coq...

How to prove that "Type <> Set" (i.e. Type is not equal to Set) in Coq?...

Stuck proving lemma with unprovable subgoals...

Coq: prove that an inductive type w/o a non-recursive constructor is uninhabitated...

Shorter notation for matching hypotheses in Coq?...

Idris Type mismatch that occurs even from template...

I want to prove some theorem using Prolog, however, it always returns "Out of global stack&quot...

Isabelle: Sledgehammer finds a proof but it fails...

Proving `forall x xs ys, subseq (x :: xs) ys -> subseq xs ys` in Coq...

Knowing when an Isar-style proof is actually valid in Isabelle...

Isabelle 2017 -- getting started...

Non-empty list append theorem in Coq...

Generalising a set of proofs in coq...

Smart constructor pattern while proving with Isabelle...

Coq can't find subterm when using rewrite tactic...

How to prove that a relation property holds for a transitive closure of this relation?...

VerifiedFunctor - prove map (map g) x = x...

Rewriting in simple theorem proof...

"rewriting did not change type" error for visually same types...