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: y real-vector-space: RealVectorSpace ss-eq: x ≡ y ss-point: Point uimplies: supposing a uall: [x:A]. B[x]
Definitions unfolded in proof :  false: False prop: or: P ∨ Q subtype_rel: A ⊆B all: x:A. B[x] implies:  Q not: ¬A ss-eq: x ≡ y uimplies: 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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