Using an inverse value of an injective function...

Can I change the notation in a built-in Isabelle type-class...

Isabelle resolves interpretation...

Preimage of a function in Isabelle...

Generalize a claim in a structural induction proof to be able to use the induction hypothesis...

Focussing on new subgoals in Eisbach...

How do I convert a predicate to a function in Isabelle?...

Express a parametric abbreviation in Isabelle...

Isabelle Code Generation and Linear Order...

Is it possible to write non-automatic formalizations in Isar?...

Object level implication in Isabelle/HOL...

Nested recursion and `Program Fixpoint` or `Function`...

Eisbach term parameters and subgoal_tac...

Isabelle/HOL restrict codomain...

Simp does not use the provided lemma in Isabelle...

Pattern matching existential goal in Isabelle...

undefined in Isabelle/HOL...

Isabelle/HOL Question about Sets of Tuples...

Extracting BNF data in Isabelle...

Does Isabelle/HOL have its tactic language?...

Debugging ML proofs in Isabelle...

Exploring ML files in Isabelle...

Flexible/Fuzzy rule application in Isabelle/HOL...

Isabelle's document preparation...

Basic Isabelle sequence limit proof...

Rewriting sine using simprocs in Isabelle...

Why is my simproc not activated on the prescribed pattern?...

What's a cterm?...

How proof assistants are implemented?...

Fix a field with characteristic different from 2 in Isabelle...