Decreasing argument (and what is a Program Fixpoint)...

How to crash on internal bug and force totality...

Can any additional axiom make Coq Turing complete?...

Can I avoid explicitly discharging invalid cases in total functions in Idris?...

Defining recursive function over product type...

Convince Idris about recursive call totality...

Proving totality of a function taking at most n recursive calls...

Error in defining Ackermann in Coq...

Coq can't compute well-founded defined with Fix, but can if defined with Program Fixpoint...

Cannot determine termination...

Teach coq to check termination...

Finding a well founded relation to prove termination of a function that stops decreasing at some poi...

Program Fixpoint: recursive call in `let` and hypothesis of the obligation...

What's the difference between Program Fixpoint and Function in Coq?...

Coq simpl for Program Fixpoint...

Why does this 'with' block spoil the totality of this function?...

Coq best practice: mutual recursion, only one function is structurally decreasing...

Why does this function hang the REPL?...

Limitations of Fixpoint in Coq?...

Coq can't compute a well-founded function on Z, but it works on nat...

Error: Cannot guess decreasing argument of fix. Coq...

Mutualy recursive function and termination checker in Coq...

How to get an induction principle for nested fix...

Showing terminating recursion for cumsum in Coq...

Well founded recursion in Coq...

How to indicate decreasing in size of two Coq inductive types...

Cannot guess decreasing argument of fix for nested match in Coq...

Idris: totality check fails when trying to re-implement fromInteger for Nat...

Well-founded recursion by repeated division...

Is this recursive function not total, or is the compiler just unable to prove it? How to rewrite it ...