Step
*
of Lemma
assoced_equiv_rel
EquivRel(ℤ;x,y.x ~ y)
BY
{ % With better HO matching, could fold directly the
symmetrize relation here %
Assert ⌜EquivRel(ℤ;x,y.Symmetrize(u,v.u | v;x;y))⌝ }
1
.....assertion.....
EquivRel(ℤ;x,y.Symmetrize(u,v.u | v;x;y))
2
1. EquivRel(ℤ;x,y.Symmetrize(u,v.u | v;x;y))
⊢ EquivRel(ℤ;x,y.x ~ y)
Latex:
Latex:
EquivRel(\mBbbZ{};x,y.x \msim{} y)
By
Latex:
\% With better HO matching, could fold directly the
symmetrize relation here \%
Assert \mkleeneopen{}EquivRel(\mBbbZ{};x,y.Symmetrize(u,v.u | v;x;y))\mkleeneclose{}
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