Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2022-02-23 21:42 2c74921e

View on Github →

feat(data/pfun): A new induction on pfun.fix (#12109) A new lemma that lets you prove predicates given b ∈ f.fix a if f preserves the predicate, and it holds for values which f maps to b.

Estimated changes