Nuprl Lemma : oal_neg_keys_invar

a:PosetSig. ∀b:GrpSig. ∀ps:(|a| × |b|) List.  (map(λz.(fst(z));--ps) map(λz.(fst(z));ps) ∈ (|a| List))


Proof




Definitions occuring in Statement :  oal_neg: --ps map: map(f;as) list: List pi1: fst(t) all: x:A. B[x] lambda: λx.A[x] product: x:A × B[x] equal: t ∈ T grp_car: |g| grp_sig: GrpSig set_car: |p| poset_sig: PosetSig
Definitions unfolded in proof :  all: x:A. B[x] oal_neg: --ps member: t ∈ T uall: [x:A]. B[x] top: Top compose: g pi1: fst(t) so_lambda: λ2x.t[x] so_apply: x[s]
Lemmas referenced :  list_wf set_car_wf grp_car_wf grp_sig_wf poset_sig_wf map_map map_wf pi1_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity lambdaFormation cut hypothesis lemma_by_obid sqequalHypSubstitution isectElimination thin productEquality hypothesisEquality sqequalRule isect_memberEquality voidElimination voidEquality lambdaEquality

Latex:
\mforall{}a:PosetSig.  \mforall{}b:GrpSig.  \mforall{}ps:(|a|  \mtimes{}  |b|)  List.    (map(\mlambda{}z.(fst(z));--ps)  =  map(\mlambda{}z.(fst(z));ps))



Date html generated: 2016_05_16-AM-08_19_04
Last ObjectModification: 2015_12_28-PM-06_26_26

Theory : polynom_2


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