Nuprl Lemma : ip-between-sep
∀rv:InnerProductSpace. ∀a,c:Point.  ∀[b:Point]. (a # c) supposing (a # b and a_b_c)
Proof
Definitions occuring in Statement : 
ip-between: a_b_c, 
inner-product-space: InnerProductSpace, 
ss-sep: x # y, 
ss-point: Point, 
uimplies: b supposing a, 
uall: ∀[x:A]. B[x], 
all: ∀x:A. B[x]
Definitions unfolded in proof : 
all: ∀x:A. B[x], 
uall: ∀[x:A]. B[x], 
uimplies: b supposing a, 
member: t ∈ T, 
ip-between: a_b_c, 
subtype_rel: A ⊆r B, 
implies: P ⇒ Q, 
sq_stable: SqStable(P), 
squash: ↓T, 
prop: ℙ, 
guard: {T}, 
and: P ∧ Q, 
cand: A c∧ B, 
iff: P ⇐⇒ Q, 
uiff: uiff(P;Q), 
rev_implies: P ⇐ Q, 
rge: x ≥ y
Lemmas referenced : 
req_witness, 
radd_wf, 
rmul_wf, 
rv-norm_wf, 
rv-sub_wf, 
inner-product-space_subtype, 
rv-ip_wf, 
int-to-real_wf, 
sq_stable__rv-sep-ext, 
ip-dist-between, 
ss-sep_wf, 
real-vector-space_subtype1, 
subtype_rel_transitivity, 
inner-product-space_wf, 
real-vector-space_wf, 
separation-space_wf, 
ip-between_wf, 
ss-point_wf, 
rv-norm-positive, 
rv-sep-iff, 
rv-norm-nonneg, 
real_wf, 
rleq_wf, 
req_wf, 
trivial-rless-radd, 
rless_functionality_wrt_implies, 
rleq_weakening_equal, 
rleq_transitivity, 
radd_functionality_wrt_rleq, 
rleq_weakening, 
req_inversion, 
rv-norm-positive-iff
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation, 
isect_memberFormation, 
cut, 
introduction, 
sqequalRule, 
sqequalHypSubstitution, 
extract_by_obid, 
isectElimination, 
thin, 
hypothesisEquality, 
applyEquality, 
hypothesis, 
because_Cache, 
natural_numberEquality, 
independent_functionElimination, 
rename, 
dependent_functionElimination, 
independent_isectElimination, 
imageMemberEquality, 
baseClosed, 
imageElimination, 
instantiate, 
productElimination, 
independent_pairFormation, 
lambdaEquality, 
setElimination, 
setEquality, 
productEquality, 
equalityTransitivity, 
equalitySymmetry
Latex:
\mforall{}rv:InnerProductSpace.  \mforall{}a,c:Point.    \mforall{}[b:Point].  (a  \#  c)  supposing  (a  \#  b  and  a\_b\_c)
Date html generated:
2017_10_05-AM-00_01_50
Last ObjectModification:
2017_03_12-PM-03_14_40
Theory : inner!product!spaces
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