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Theorem opposite.coe_op_add_equiv_symm

Modification history

2021-11-19 12:03
src/algebra/opposites.lean
refactor(algebra/opposites): use mul_opposite for multiplicative opposite (#10302) …
Deleted opposite.coe_op_add_equiv_symmView on Github →
2020-11-04 05:43
src/algebra/opposites.lean
feat(data/quaternion): define quaternions and prove some basic properties (#2339)
Added opposite.coe_op_add_equiv_symmView on Github →