Theorem Counterexample.SorgenfreyLine.not_normalSpace_prod

Modification history

2023-07-19 07:03
Counterexamples/SorgenfreyLine.lean
feat: +1 proof that Sorgenfrey plane is not normal (#5775)
Modified Counterexample.SorgenfreyLine.not_normalSpace_prodView on Github →
2023-07-04 05:50
Counterexamples/SorgenfreyLine.lean
feat: port Counterexamples.SorgenfreyLine (#4978)
Added Counterexample.SorgenfreyLine.not_normalSpace_prodView on Github →