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Theorem alg_equiv.subsingleton_left

Modification history

2022-08-16 10:36
src/algebra/algebra/subalgebra/basic.lean
chore(*): restore `subsingleton` instances and remove hacks (#16046) …
Deleted alg_equiv.subsingleton_leftView on Github →
2021-06-30 16:49
src/algebra/algebra/subalgebra.lean
fix(algebra/algebra/subalgebra): fix incorrect namespaces and remove duplicate instance (#8140) …
Added alg_equiv.subsingleton_leftView on Github →