Mathlib v3 is deprecated. Go to Mathlib v4

Theorem not_ssubset_of_subset

Modification history

2022-02-02 14:51
src/order/rel_classes.lean
feat(order/rel_classes): Unbundled typeclass to state that two relations are the non strict and strict versions (#11381) …
Added not_ssubset_of_subsetView on Github →