Theorem WeakDual.isClosed_polar

Modification history

2026-04-03 20:10
Mathlib/Analysis/Normed/Module/WeakDual.lean
chore(Analysis/Normed/Module/WeakDual): revert `polar`, `polar_def` and `isClosed_polar` to weaker hypotheses (#37314) …
Modified WeakDual.isClosed_polarView on Github →
2023-05-26 09:28
Mathlib/Analysis/NormedSpace/WeakDual.lean
feat: port Analysis.NormedSpace.WeakDual (#4351)
Added WeakDual.isClosed_polarView on Github →