Nuprl Lemma : geo-strict-between_wf
∀[g:GeometryPrimitives]. ∀[a,b,c:Point].  (a-b-c ∈ ℙ)
Proof
Definitions occuring in Statement : 
geo-strict-between: a-b-c
, 
geo-primitives: GeometryPrimitives
, 
geo-point: Point
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
member: t ∈ T
Definitions unfolded in proof : 
and: P ∧ Q
, 
prop: ℙ
, 
geo-strict-between: a-b-c
, 
member: t ∈ T
, 
uall: ∀[x:A]. B[x]
Lemmas referenced : 
geo-primitives_wf, 
geo-point_wf, 
geo-sep_wf, 
geo-between_wf
Rules used in proof : 
because_Cache, 
isect_memberEquality, 
equalitySymmetry, 
equalityTransitivity, 
axiomEquality, 
hypothesis, 
hypothesisEquality, 
thin, 
isectElimination, 
sqequalHypSubstitution, 
extract_by_obid, 
productEquality, 
sqequalRule, 
cut, 
introduction, 
isect_memberFormation, 
sqequalReflexivity, 
computationStep, 
sqequalTransitivity, 
sqequalSubstitution
Latex:
\mforall{}[g:GeometryPrimitives].  \mforall{}[a,b,c:Point].    (a-b-c  \mmember{}  \mBbbP{})
Date html generated:
2017_10_02-PM-03_26_01
Last ObjectModification:
2017_08_04-PM-06_45_24
Theory : euclidean!plane!geometry
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