Verification frameworks
Verification frameworks Verification frameworks: Dafny, Boogie, F*, VCC, Prusti, Creusot, Aeneas, Cogent, Rocq, and Isabelle/HOL, Versus (in Rust). Typically they have syntax like: exec_fn_item ::= visibility? exec? fn function_name generics?(args...) ( -> exec_return_type )? where_clause? requires_clause? ensures_clause? returns_clause? invariants_clause? unwind_clause? I proposed adding some mathematical verification to C#, but failed: https://github.com/dotnet/csharplang/discussions/10306 For an example of proving LeftPad: https://github.com/hwayne/lets-prove-leftpad