Theorem Counterexample.SorgenfreyLine.not_separableSpace_antidiagonal

Modification history

2023-07-19 07:03
Counterexamples/SorgenfreyLine.lean
feat: +1 proof that Sorgenfrey plane is not normal (#5775)
Added Counterexample.SorgenfreyLine.not_separableSpace_antidiagonalView on Github →