Commit 2020-09-24 20:51 675f5d47

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feat(algebra/char_p): nontrivial_of_char_ne_one (#4232) Also renames false_of_nonzero_of_char_one to false_of_nontrivial_of_char_one Snippet from the Witt project

Estimated changes

Modified src/algebra/char_p.lean

added theorem char_p.false_of_nontrivial_of_char_one

deleted theorem char_p.false_of_nonzero_of_char_one

added theorem char_p.nontrivial_of_char_ne_one

Modified src/logic/nontrivial.lean

added theorem false_of_nontrivial_of_subsingleton