Nuprl Lemma : ip-between-trivial
∀[rv:InnerProductSpace]. ∀[a,b:Point].  b_b_a
Proof
Definitions occuring in Statement : 
ip-between: a_b_c
, 
inner-product-space: InnerProductSpace
, 
ss-point: Point
, 
uall: ∀[x:A]. B[x]
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
ip-between: a_b_c
, 
subtype_rel: A ⊆r B
, 
implies: P 
⇒ Q
, 
guard: {T}
, 
uimplies: b supposing a
, 
all: ∀x:A. B[x]
, 
uiff: uiff(P;Q)
, 
and: P ∧ Q
, 
rev_uimplies: rev_uimplies(P;Q)
, 
prop: ℙ
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, 
ss-point_wf, 
real-vector-space_subtype1, 
subtype_rel_transitivity, 
inner-product-space_wf, 
real-vector-space_wf, 
separation-space_wf, 
req_wf, 
rv-0_wf, 
uiff_transitivity, 
req_functionality, 
radd_functionality, 
rv-ip_functionality, 
rv-sub-same, 
ss-eq_weakening, 
rmul_functionality, 
rv-norm_functionality, 
req_weakening, 
rv-0ip, 
rv-norm0, 
real_wf, 
rleq_wf, 
rmul-zero-both, 
radd-zero-both
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
sqequalHypSubstitution, 
extract_by_obid, 
isectElimination, 
thin, 
hypothesisEquality, 
applyEquality, 
hypothesis, 
because_Cache, 
natural_numberEquality, 
independent_functionElimination, 
instantiate, 
independent_isectElimination, 
isect_memberEquality, 
dependent_functionElimination, 
productElimination, 
lambdaEquality, 
setElimination, 
rename, 
setEquality, 
productEquality
Latex:
\mforall{}[rv:InnerProductSpace].  \mforall{}[a,b:Point].    b\_b\_a
Date html generated:
2017_10_04-PM-11_59_44
Last ObjectModification:
2017_03_09-PM-05_43_31
Theory : inner!product!spaces
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