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Commit 2023-01-25 06:25 2987594a

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refactor(topology): move pcontinuous etc to a new file (#18288) Move pcontinuous and lemmas about ptendsto to a new file. There are some issues with porting data.pfun to Lean 4, so this PR makes it possible to port topology without waiting for pfun.

Estimated changes

deleted theorem open_dom_of_pcontinuous
deleted def pcontinuous
deleted theorem pcontinuous_iff'
deleted theorem ptendsto'_nhds
deleted theorem ptendsto_nhds
deleted theorem rtendsto'_nhds
deleted theorem rtendsto_nhds
added def pcontinuous
added theorem pcontinuous_iff'
added theorem ptendsto'_nhds
added theorem ptendsto_nhds
added theorem rtendsto'_nhds
added theorem rtendsto_nhds