Mathlib v3 is deprecated. Go to Mathlib v4

Theorem sym_option_succ_equiv.encode_of_not_none_mem

Modification history

2022-07-20 19:03
src/data/sym/basic.lean
feat(data/sym/basic): combinatorial equivalence for `sym (option α) n.succ` (#15192) …
Added sym_option_succ_equiv.encode_of_not_none_memView on Github →