Nuprl Lemma : RankEx2_LeafS_wf

[S,T:Type]. ∀[leafs:S].  (RankEx2_LeafS(leafs) ∈ RankEx2(S;T))


Proof




Definitions occuring in Statement :  RankEx2_LeafS: RankEx2_LeafS(leafs) RankEx2: RankEx2(S;T) uall: [x:A]. B[x] member: t ∈ T universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T RankEx2: RankEx2(S;T) RankEx2_LeafS: RankEx2_LeafS(leafs) eq_atom: =a y ifthenelse: if then else fi  bfalse: ff btrue: tt all: x:A. B[x] implies:  Q bool: 𝔹 unit: Unit it: uiff: uiff(P;Q) and: P ∧ Q uimplies: supposing a exists: x:A. B[x] prop: or: P ∨ Q sq_type: SQType(T) guard: {T} bnot: ¬bb assert: b false: False subtype_rel: A ⊆B ext-eq: A ≡ B RankEx2co_size: RankEx2co_size(p) has-value: (a)↓ nat: le: A ≤ B less_than': less_than'(a;b) not: ¬A so_lambda: λ2x.t[x] so_apply: x[s]
Lemmas referenced :  RankEx2co-ext eq_atom_wf bool_wf eqff_to_assert equal_wf bool_cases_sqequal subtype_base_sq bool_subtype_base assert-bnot neg_assert_of_eq_atom eqtt_to_assert assert_of_eq_atom RankEx2co_wf list_wf false_wf le_wf nat_wf has-value_wf_base set_subtype_base int_subtype_base is-exception_wf has-value_wf-partial set-value-type int-value-type RankEx2co_size_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation cut dependent_set_memberEquality lemma_by_obid hypothesis sqequalHypSubstitution isectElimination thin because_Cache hypothesisEquality sqequalRule dependent_pairEquality tokenEquality lambdaFormation unionElimination equalityElimination productElimination independent_isectElimination equalityTransitivity equalitySymmetry dependent_pairFormation promote_hyp dependent_functionElimination instantiate cumulativity independent_functionElimination voidElimination productEquality unionEquality voidEquality equalityEquality applyEquality natural_numberEquality independent_pairFormation divergentSqle sqleReflexivity intEquality lambdaEquality universeEquality

Latex:
\mforall{}[S,T:Type].  \mforall{}[leafs:S].    (RankEx2\_LeafS(leafs)  \mmember{}  RankEx2(S;T))



Date html generated: 2016_05_16-AM-08_59_57
Last ObjectModification: 2015_12_28-PM-06_51_34

Theory : C-semantics


Home Index