Theorem by_contradiction

Modification history

2025-04-12 23:52
Mathlib/Logic/Basic.lean
fix: remove undercover `open Classical`s (#23750) …
Modified by_contradictionView on Github →
2024-09-10 17:34
Mathlib/Logic/Basic.lean
chore: deprecate most of `Init.Logic` (#16438) …
Modified by_contradictionView on Github →
2024-04-19 20:51
Mathlib/Logic/Basic.lean
chore(Logic): reduce use of autoImplicit (#12135) …
Modified by_contradictionView on Github →
2022-10-24 15:16
Mathlib/Logic/Basic.lean
feat: port Logic/Basic (#484) …
Modified by_contradictionView on Github →
2021-08-12 12:17
Mathlib/Logic/Basic.lean
split out Lean 3 prelude items from Logic/Basic.lean to Init/Logic.lean (#34)
Added by_contradictionView on Github →