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Commit 2021-12-21 12:42 7e48e350

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feat(algebra/module/submodule_lattice, linear_algebra/projection): two lemmas about is_compl (#10709)

Estimated changes

Modified src/algebra/module/submodule_lattice.lean

added theorem submodule.disjoint_def'

added theorem submodule.disjoint_def

added theorem submodule.eq_zero_of_coe_mem_of_disjoint

Modified src/linear_algebra/basic.lean

deleted theorem submodule.disjoint_def'

deleted theorem submodule.disjoint_def

Modified src/linear_algebra/prod.lean

added def linear_equiv.prod_comm

Modified src/linear_algebra/projection.lean

added theorem submodule.linear_proj_add_linear_proj_of_is_compl_eq_self

added theorem submodule.prod_comm_trans_prod_equiv_of_is_compl