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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