Nuprl Lemma : RankEx2_ListProd-listprod_wf

[S,T:Type]. ∀[v:RankEx2(S;T)].  RankEx2_ListProd-listprod(v) ∈ (S × RankEx2(S;T)) List supposing ↑RankEx2_ListProd?(v)


Proof




Definitions occuring in Statement :  RankEx2_ListProd-listprod: RankEx2_ListProd-listprod(v) RankEx2_ListProd?: RankEx2_ListProd?(v) RankEx2: RankEx2(S;T) list: List assert: b uimplies: supposing a uall: [x:A]. B[x] member: t ∈ T product: x:A × B[x] universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] uimplies: supposing a member: t ∈ T ext-eq: A ≡ B and: P ∧ Q subtype_rel: A ⊆B all: x:A. B[x] implies:  Q bool: 𝔹 unit: Unit it: btrue: tt uiff: uiff(P;Q) sq_type: SQType(T) guard: {T} eq_atom: =a y ifthenelse: if then else fi  RankEx2_ListProd?: RankEx2_ListProd?(v) pi1: fst(t) assert: b bfalse: ff false: False exists: x:A. B[x] prop: or: P ∨ Q bnot: ¬bb RankEx2_ListProd-listprod: RankEx2_ListProd-listprod(v) pi2: snd(t)
Lemmas referenced :  RankEx2-ext eq_atom_wf bool_wf eqtt_to_assert assert_of_eq_atom subtype_base_sq atom_subtype_base eqff_to_assert equal_wf bool_cases_sqequal bool_subtype_base assert-bnot neg_assert_of_eq_atom assert_wf RankEx2_ListProd?_wf RankEx2_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation cut lemma_by_obid sqequalHypSubstitution isectElimination thin hypothesisEquality promote_hyp productElimination hypothesis_subsumption hypothesis applyEquality sqequalRule tokenEquality lambdaFormation unionElimination equalityElimination equalityTransitivity equalitySymmetry independent_isectElimination instantiate cumulativity atomEquality dependent_functionElimination independent_functionElimination because_Cache voidElimination dependent_pairFormation equalityEquality universeEquality

Latex:
\mforall{}[S,T:Type].  \mforall{}[v:RankEx2(S;T)].
    RankEx2\_ListProd-listprod(v)  \mmember{}  (S  \mtimes{}  RankEx2(S;T))  List  supposing  \muparrow{}RankEx2\_ListProd?(v)



Date html generated: 2016_05_16-AM-09_02_02
Last ObjectModification: 2015_12_28-PM-06_50_08

Theory : C-semantics


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