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Commit 2023-04-01 01:35 474656fd

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chore(algebra/order/lattice_group): Golf (#18046) Golf proofs and remove a duplicate lemma.

Estimated changes

Modified src/algebra/order/lattice_group.lean

added theorem inf_mul

deleted theorem lattice_ordered_comm_group.mul_inf_eq_mul_inf_mul

modified theorem lattice_ordered_comm_group.neg_eq_one_iff'

modified theorem lattice_ordered_comm_group.pos_eq_neg_inv

modified theorem lattice_ordered_comm_group.pos_eq_one_iff

added theorem sup_mul