Products of Hausdorff spaces. #474
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CohenCyril
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Dec 16, 2021
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Just wanted to check if there is anything else I should update here before Thursday. |
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Since there is a definition, we maybe want to add documentation. I added some but you certainly have better wording. We can also maybe gain a few more lines by compressing scripts further. |
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Looks good to me, except for the name |
fixing lines Update theories/topology.v using a better lemma to eliminate Eqdep_dec.eq_rect_eq_dec Co-authored-by: Cyril Cohen <[email protected]> doc, lint, compress
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Ah, that is a dramatic simplification for the continuity proof. Thanks! And I agree your suggested name is much improved. Now updated. |
CohenCyril
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Jan 20, 2022
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- using a better lemma to eliminate Eqdep_dec.eq_rect_eq_dec Co-authored-by: Cyril Cohen <[email protected]>
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A result from Munkres says products of Hausdorff spaces are Hausdorff. This proves that, although there is some annoyance with regard to dependent types. I end up using
Eqdep_dec.eq_rect_eq_decandpselect, to get the job done. It seems to work alright.