Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2017-09-03 23:13 086ac36f

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feat(tactic/interactive): simpf tactic, more logic refactor

Estimated changes

deleted theorem imp_of_not_or
added theorem not_and'
added theorem not_and
deleted theorem not_and_iff_imp'
deleted theorem not_and_iff_imp
added theorem not_and_not_right