Makarius questions

Makarius answers

• Why is a meta-universally quantified variable renamed and how is it prevented?
• Prove a basic lemma in Isabelle
• Document preparation in Isabelle
• Proving A ==> B ==> C ==> B in Isabelle
• A theorem prover / proof assistant supporting (multiple) subtyping / subclassing [closed]
• Definition of a certified program
• Does SML (Poly) have a CL-like REPL?
• Max of set in Isabelle
• Isabelle2016 and Proof General
• Is it possible to not import any theory in Isabelle?