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Step * 1 1 1 of Lemma sym_grp_is_swaps


1. p : Sym(0)
⊢ p = id_perm() ∈ Sym(0)
BY
{ (BackThruLemma `zero_sym_grp` THEN Auto) }

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Latex:

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Latex:

1.  p  :  Sym(0)
\mvdash{}  p  =  id\_perm()


By

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Latex:
(BackThruLemma  `zero\_sym\_grp`  THEN  Auto)

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