Nuprl Lemma : list-subtype-bag

∀[A,B:Type].  (A List) ⊆r bag(B) supposing A ⊆r B


Proof




Definitions occuring in Statement :  bag: bag(T),  list: T List,  uimplies: b supposing a,  subtype_rel: A ⊆r B,  uall: ∀[x:A]. B[x],  universe: Type
Definitions unfolded in proof :  member: t ∈ T,  uall: ∀[x:A]. B[x],  subtype_rel: A ⊆r B,  uimplies: b supposing a,  all: ∀x:A. B[x],  bag: bag(T),  so_lambda: λ2x y.t[x; y],  so_apply: x[s1;s2],  implies: P ⇒ Q
Lemmas referenced :  list_wf,  permutation_wf,  permutation-equiv,  subtype_rel_list,  permutation_weakening,  quotient-member-eq,  subtype_rel_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  cut,  lemma_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  hypothesis,  lambdaEquality,  applyEquality,  independent_isectElimination,  sqequalRule,  dependent_functionElimination,  because_Cache,  isect_memberFormation,  introduction,  independent_functionElimination,  axiomEquality,  isect_memberEquality,  equalityTransitivity,  equalitySymmetry,  universeEquality

Latex:
\mforall{}[A,B:Type].    (A  List)  \msubseteq{}r  bag(B)  supposing  A  \msubseteq{}r  B



Date html generated: 2016_05_15-PM-02_21_29
Last ObjectModification: 2015_12_27-AM-09_55_29

Theory : bags


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