jjdishere / EG

Formalizing Euclidean Geometry in Lean
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Use PtNe everywhere #269

Open jjdishere opened 6 months ago

jjdishere commented 6 months ago

Now ANG still use Fact, not PtNe. We should change every theorem with conditions of \ne into [PtNe ] and conclusions of \ne into [PtNe] too. not all theorems should be written as instance. but it provide a good form for future tactics