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Theorem inv_one'

Modification history

2020-06-10 12:50
src/algebra/group_with_zero.lean
chore(algebra/field): deduplicate with group_with_zero (#3015) …
Deleted inv_one'View on Github →
2020-04-06 23:05
src/algebra/group_with_zero.lean
feat(algebra/group_with_zero): groups with a zero element adjoined (#2242) …
Added inv_one'View on Github →