Nuprl Lemma : rv-add_functionality

∀[rv:RealVectorSpace]. ∀[x,y,x',y':Point].  (x + y ≡ x' + y') supposing (y ≡ y' and x ≡ x')


Proof




Definitions occuring in Statement :  rv-add: x + y,  real-vector-space: RealVectorSpace,  ss-eq: x ≡ y,  ss-point: Point,  uimplies: b supposing a,  uall: ∀[x:A]. B[x]
Definitions unfolded in proof :  false: False,  prop: ℙ,  or: P ∨ Q,  subtype_rel: A ⊆r B,  all: ∀x:A. B[x],  implies: P ⇒ Q,  not: ¬A,  ss-eq: x ≡ y,  uimplies: b supposing a,  member: t ∈ T,  uall: ∀[x:A]. B[x]
Lemmas referenced :  ss-sep-symmetry,  real-vector-space_wf,  ss-point_wf,  ss-eq_wf,  ss-sep_wf,  rv-add-sep2,  rv-add-sep1,  rv-add_wf,  real-vector-space_subtype1,  ss-sep-or
Rules used in proof :  voidElimination,  equalitySymmetry,  equalityTransitivity,  isect_memberEquality,  lambdaEquality,  because_Cache,  unionElimination,  independent_functionElimination,  isectElimination,  sqequalRule,  hypothesis,  applyEquality,  hypothesisEquality,  thin,  dependent_functionElimination,  sqequalHypSubstitution,  extract_by_obid,  lambdaFormation,  cut,  introduction,  isect_memberFormation,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution

Latex:
\mforall{}[rv:RealVectorSpace].  \mforall{}[x,y,x',y':Point].    (x  +  y  \mequiv{}  x'  +  y')  supposing  (y  \mequiv{}  y'  and  x  \mequiv{}  x')



Date html generated: 2016_11_08-AM-09_13_26
Last ObjectModification: 2016_10_31-PM-06_21_36

Theory : inner!product!spaces


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