Theorem isEmpty_sum

Modification history

2026-02-13 18:17

Mathlib/Logic/IsEmpty.lean

chore(Logic/IsEmpty): split file into `Defs` and `Basic` (#35137) …

Modified isEmpty_sum View on Github →

2024-07-20 07:03

Mathlib/Logic/IsEmpty.lean

chore(*): use ⊕ notation for `Sum` (#14934)

Modified isEmpty_sum View on Github →

2022-11-11 07:33

Mathlib/Logic/IsEmpty.lean

chore: rename and alignment `is_empty` → `isEmpty` in lemmas (#571)

Added isEmpty_sum View on Github →