Theorem by_contra

Modification history

2022-09-08 18:38
Mathlib/Logic/Basic.lean
chore: bump std4 09-08 (#403) …
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2021-08-18 12:36
Mathlib/Logic/Basic.lean
Merge branch 'master' of github.com:leanprover-community/mathlib4
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2021-08-18 12:21
Mathlib/Logic/Basic.lean
feat(Util/Time): #time command
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2021-08-17 10:02
Mathlib/Logic/Basic.lean
port remaining items from 'section propositional' in logic/basic (#36)
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