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Commit 2021-02-26 00:42 6ed8b4b0

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feat(linear_algebra/finite_dimensional): lemmas for zero dimensional vector spaces (#6397)

Estimated changes

Modified src/linear_algebra/dimension.lean

added theorem dim_zero_iff

added theorem is_basis_of_dim_eq_zero'

added theorem is_basis_of_dim_eq_zero

Modified src/linear_algebra/finite_dimensional.lean

added theorem findim_zero_iff_forall_zero

added theorem finite_dimensional.findim_zero_iff

added theorem finite_dimensional.findim_zero_of_subsingleton

added theorem is_basis_of_findim_zero'

added theorem is_basis_of_findim_zero