Step
*
1
of Lemma
quot_ring_car_qinc
1. r : CRng
2. a : Ideal(r){i}
3. ∀x:|r|. SqStable(a x)
4. d : detach_fun(|r|;a)
⊢ EquivRel(|r|;x,y.↑(d (x +r (-r y))))
BY
{ (UsingVars [`a'] (BLemma `ideal-detach-equiv`) THEN Auto) }
Latex:
Latex:
1. r : CRng
2. a : Ideal(r)\{i\}
3. \mforall{}x:|r|. SqStable(a x)
4. d : detach\_fun(|r|;a)
\mvdash{} EquivRel(|r|;x,y.\muparrow{}(d (x +r (-r y))))
By
Latex:
(UsingVars [`a'] (BLemma `ideal-detach-equiv`) THEN Auto)
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