Nuprl Lemma : geo-between-implies-colinear

e:EuclideanPlane. ∀[a,b,c:Point].  Colinear(a;b;c) supposing B(abc)


Proof




Definitions occuring in Statement :  euclidean-plane: EuclideanPlane geo-colinear: Colinear(a;b;c) geo-between: B(abc) geo-point: Point uimplies: 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] member: t ∈ T uimplies: supposing a geo-colinear: Colinear(a;b;c) not: ¬A implies:  Q subtype_rel: A ⊆B prop: false: False guard: {T} geo-between: B(abc) and: P ∧ Q

Latex:
\mforall{}e:EuclideanPlane.  \mforall{}[a,b,c:Point].    Colinear(a;b;c)  supposing  B(abc)



Date html generated: 2020_05_20-AM-09_47_40
Last ObjectModification: 2019_11_13-PM-03_28_05

Theory : euclidean!plane!geometry


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