Nuprl Lemma : geo-between-outer-trans2
∀e:BasicGeometry-. ∀[a,b,c,d:Point].  (B(abd)) supposing (B(bcd) and B(abc) and b # c)
Proof
Definitions occuring in Statement : 
basic-geometry-: BasicGeometry-, 
geo-between: B(abc), 
geo-sep: a # b, 
geo-point: Point, 
uimplies: b supposing a, 
uall: ∀[x:A]. B[x], 
all: ∀x:A. B[x]
Definitions unfolded in proof : 
prop: ℙ, 
guard: {T}, 
subtype_rel: A ⊆r B, 
false: False, 
implies: P ⇒ Q, 
not: ¬A, 
and: P ∧ Q, 
geo-between: B(abc), 
uimplies: b supposing a, 
member: t ∈ T, 
uall: ∀[x:A]. B[x], 
all: ∀x:A. B[x], 
basic-geometry-: BasicGeometry-
Latex:
\mforall{}e:BasicGeometry-.  \mforall{}[a,b,c,d:Point].    (B(abd))  supposing  (B(bcd)  and  B(abc)  and  b  \#  c)
Date html generated:
2020_05_20-AM-09_51_49
Last ObjectModification:
2019_12_20-PM-08_45_27
Theory : euclidean!plane!geometry
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