Topological filters in Isabelle...

Isabelle Failed to refine any pending goal during instantiation...

How to type boldface symbols in Isabelle...

Isabelle `subst` but replace right side with left side...

Isabelle order type-class on lambda expressions...

Function termination proof in Isabelle...

Isabelle instantiation with type parameter...

Isabelle/Pure Isabelle/HOL Isabell/Isar conceptual questions...

Max of set in Isabelle...

Do I need to save Isabelle files to import them?...

Print the name of a fact in a document antiquotation...

Continuous functions in Isabelle...

How to proceed in Isabelle when the goal has implications and existentials?...

De Bruijn indices in Isabelle and Coq...

Type Unification failed for bool * bool ⇒ bool * bool...

Datatype declaration by datatype in Standard ML...

How can I input the special character ⇩ in Isabelle/jedit?...

Isabelle exercise proof that trev (trev t) = t...

Ring structure induced by a bijection...

type variable in datatype definition...

Isabelle definitions with subscripts...

What do double brackets mean in Isabelle?...

Add `example` as an Isar synonym for `lemma`...

Is it possible to convert all higher-order logic and dependent type in Lean/Isabelle/Coq into first-...

"Double loop" set comprehension...

How to add an elimination rule to auto?...

Turning a value[simp] example into a lemma. With functions in them...

Dynamically retrieve variable name - is it possible?...

What are all the isabelle/slashes?...

Generate a list of nats, like [1..n] generates a list of ints...