Nuprl Lemma : rv-add-sep-iff
∀rv:InnerProductSpace. ∀a,b,h:Point.  (h + a # h + b ⇐⇒ a # b)
Proof
Definitions occuring in Statement : 
inner-product-space: InnerProductSpace, 
rv-add: x + y, 
ss-sep: x # y, 
ss-point: Point, 
all: ∀x:A. B[x], 
iff: P ⇐⇒ Q
Definitions unfolded in proof : 
all: ∀x:A. B[x], 
member: t ∈ T, 
uall: ∀[x:A]. B[x], 
subtype_rel: A ⊆r B, 
guard: {T}, 
uimplies: b supposing a, 
uiff: uiff(P;Q), 
and: P ∧ Q, 
implies: P ⇒ Q, 
rv-sub: x - y, 
rv-minus: -x, 
rev_uimplies: rev_uimplies(P;Q), 
req_int_terms: t1 ≡ t2, 
top: Top, 
iff: P ⇐⇒ Q, 
rev_implies: P ⇐ Q, 
prop: ℙ
Lemmas referenced : 
ss-point_wf, 
real-vector-space_subtype1, 
inner-product-space_subtype, 
subtype_rel_transitivity, 
inner-product-space_wf, 
real-vector-space_wf, 
separation-space_wf, 
ss-eq_wf, 
rv-sub_wf, 
rv-add_wf, 
rv-mul_wf, 
int-to-real_wf, 
radd_wf, 
itermSubtract_wf, 
itermAdd_wf, 
itermConstant_wf, 
req-iff-rsub-is-0, 
rv-0_wf, 
uiff_transitivity, 
ss-eq_functionality, 
rv-add_functionality, 
ss-eq_weakening, 
rv-mul-linear, 
rv-add-assoc, 
ss-eq_transitivity, 
rv-add-swap, 
rv-add-comm, 
rv-mul-1-add-alt, 
rv-mul_functionality, 
rv-mul0, 
rv-0-add, 
real_polynomial_null, 
real_term_value_sub_lemma, 
real_term_value_add_lemma, 
real_term_value_const_lemma, 
rv-sep-iff, 
ss-sep_wf, 
iff_wf, 
ss-sep_functionality
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation, 
cut, 
introduction, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
hypothesisEquality, 
applyEquality, 
hypothesis, 
instantiate, 
independent_isectElimination, 
sqequalRule, 
because_Cache, 
minusEquality, 
natural_numberEquality, 
productElimination, 
independent_functionElimination, 
dependent_functionElimination, 
approximateComputation, 
lambdaEquality, 
intEquality, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
addLevel, 
independent_pairFormation, 
impliesFunctionality
Latex:
\mforall{}rv:InnerProductSpace.  \mforall{}a,b,h:Point.    (h  +  a  \#  h  +  b  \mLeftarrow{}{}\mRightarrow{}  a  \#  b)
Date html generated:
2017_10_04-PM-11_51_59
Last ObjectModification:
2017_06_26-PM-06_18_05
Theory : inner!product!spaces
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