Theorem Topology.IsCoinducing.restrictPreimage_of_isOpen

Modification history

2026-04-01 14:12

Mathlib/Topology/Constructions.lean

refactor(Topology): redefine `Topology.IsQuotientMap` with `Topology.IsCoinducing` (#36957) …

Added Topology.IsCoinducing.restrictPreimage_of_isOpen View on Github →