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...

Proof generated interactively with :elab doesn't work...

Why a Boolean Logic Statement Needs to be in Conjunctive Normal Form (CNF)...

Idris won't expand `mult` in proof of exponent law...

Ltac: do something different in each goal...

Ltac: Matching goal with type that depends on name of previous goal...

Using backtracking to find value for existential in Coq...

Coq: viewing proof term during proof script writing...

Extensionally equal predicates and equality of universally quantified applications...

In Isabelle, what do the angle brackets and double asterisks mean?...

Idris - proving equality of two numbers...

Proving substitution property of successor over equality...

Coq: Non-list Data structures living in Set?...

What is positivity checking?...

Beginner, cannot import in Lean...

Constructing proofs for a decision function in Idris...

Coq: working with inequalities (<>)...

Guidance completing a proof...

Rewrite equivalence under exists in goal...

Using destruct instead of inversion...

Translating from HOL interpreter to TAC_PROOF with THENL...

Theorem proving from first principles using SML with HOL inference rules...

Exception on ACCEPT_TAC after THEN in HOL...

Understanding Coq through a simple theorem proof...

Coq not generating inductive hypothesis...