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Theorem ring.perfection.coeff_add_ne_zero

Modification history

2020-12-21 16:45
src/ring_theory/perfection.lean
feat(ring_theory/perfection): define characteristic predicate of perfection (#5386) …
Deleted ring.perfection.coeff_add_ne_zeroView on Github →
2020-12-01 16:14
src/ring_theory/perfection.lean
feat(ring_theory/perfection): perfection and tilt (#5032) …
Added ring.perfection.coeff_add_ne_zeroView on Github →