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Commit 2021-08-25 21:27 8befa828

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feat(group_theory/perm/list): lemmas on form_perm (#8848)

Estimated changes

Modified src/group_theory/perm/list.lean

added theorem list.form_perm_apply_mem_eq_self_iff

added theorem list.form_perm_apply_mem_ne_self_iff

added theorem list.form_perm_apply_not_mem

added theorem list.form_perm_eq_form_perm_iff

added theorem list.form_perm_eq_one_iff

added theorem list.form_perm_gpow_apply_mem_imp_mem

added theorem list.form_perm_ne_self_imp_mem

added theorem list.form_perm_pow_apply_head

added theorem list.form_perm_pow_length_eq_one_of_nodup

Modified src/group_theory/perm/support.lean

added theorem equiv.perm.coe_support_eq_set_support

added theorem equiv.perm.set_support_apply_mem

added theorem equiv.perm.set_support_gpow_subset

added theorem equiv.perm.set_support_inv_eq

added theorem equiv.perm.set_support_mul_subset