How to replace `head!` with `head` in a recursive function in Lean 4...

Providing and using proofs as arguments to a function in Rocq...

Lean 4: Agda user struggling to understand Lean's equality type, type mismatch, not reducing...

Lean4 lambda calculus DSL macro...

while_true_nonterm in Lean4...

Coq vector: shiftin, shiftout, and last...

Coq vector: equality of shiftin...

Is there any difference between "parameters" and "indices" in Coq theorems?...

how to prove 2 step induction of list in coq using fix tactic...

What is the difference between Lemma and Theorem in Coq...

Isabelle 2017 -- getting started...

Coq is reusing a term in Induction Hypothesis, instead of creating a fresh one...

Can we have an arbitrary big upper bound for the looping variable in Dafny?...

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

how to prove the correctness of a c program with coq...

Wrong Typeclass Instance used in Coq Proof...

How to define mutual inductive propositions in Lean?...

Non-trivial Fixpoint on nested recursive types...

Failed to solve constraints: (k ≤ 5) x (k * 2 ≡ 5). How could I make this work?...

How can I prove dependent function types equal in Agda?...

Installing Z3 binding with haskell on mac...

Programming in the Calculus of Inductive Constructions with Coq...

What's the role of unification in Coq's core type system?...

(Z3Py) Using all_smt to generate all solutions of a model...

Proving Transitivity of Pointwise Relations on Lists in Coq...

Proving extensional equality of two functions...

Instantiate typeclass over type_synonym...

Recursive function leads to simplifier loop in Isabelle...

Proving n + S n = S (n + n) without n + S m = S (n + m)...

Why can't all existential binders be replaced by unique constants during skolemization?...