Nuprl Lemma : vs-bag-add-append

[K:Rng]. ∀[vs:VectorSpace(K)]. ∀[S:Type]. ∀[f:S ⟶ Point(vs)]. ∀[bs,cs:bag(S)].
  {f[b] b ∈ bs cs} = Σ{f[b] b ∈ bs} + Σ{f[b] b ∈ cs} ∈ Point(vs))


Proof




Definitions occuring in Statement :  vs-bag-add: Σ{f[b] b ∈ bs} vs-add: y vector-space: VectorSpace(K) vs-point: Point(vs) uall: [x:A]. B[x] so_apply: x[s] function: x:A ⟶ B[x] universe: Type equal: t ∈ T rng: Rng bag-append: as bs bag: bag(T)
Definitions unfolded in proof :  all: x:A. B[x] comm: Comm(T;op) ident: Ident(T;op;id) implies:  Q rev_implies:  Q iff: ⇐⇒ Q guard: {T} subtype_rel: A ⊆B true: True prop: squash: T infix_ap: y assoc: Assoc(T;op) monoid_p: IsMonoid(T;op;id) cand: c∧ B and: P ∧ Q uimplies: supposing a rng: Rng vs-bag-add: Σ{f[b] b ∈ bs} member: t ∈ T uall: [x:A]. B[x]
Lemmas referenced :  rng_wf vector-space_wf bag_wf vs-add-comm vs-mon_ident iff_weakening_equal vs-mon_assoc true_wf squash_wf equal_wf vs-0_wf vs-add_wf vs-point_wf bag-summation-append
Rules used in proof :  dependent_functionElimination functionEquality cumulativity independent_pairEquality axiomEquality isect_memberEquality independent_functionElimination productElimination baseClosed imageMemberEquality natural_numberEquality universeEquality equalitySymmetry equalityTransitivity imageElimination applyEquality sqequalRule independent_pairFormation independent_isectElimination lambdaEquality hypothesisEquality hypothesis because_Cache rename setElimination thin isectElimination sqequalHypSubstitution extract_by_obid cut introduction isect_memberFormation sqequalReflexivity computationStep sqequalTransitivity sqequalSubstitution

Latex:
\mforall{}[K:Rng].  \mforall{}[vs:VectorSpace(K)].  \mforall{}[S:Type].  \mforall{}[f:S  {}\mrightarrow{}  Point(vs)].  \mforall{}[bs,cs:bag(S)].
    (\mSigma{}\{f[b]  |  b  \mmember{}  bs  +  cs\}  =  \mSigma{}\{f[b]  |  b  \mmember{}  bs\}  +  \mSigma{}\{f[b]  |  b  \mmember{}  cs\})



Date html generated: 2018_05_22-PM-09_41_30
Last ObjectModification: 2018_01_09-PM-01_03_58

Theory : linear!algebra


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