Nuprl Lemma : geo-strict-between-implies-out2
∀e:BasicGeometry. ∀a,b,c:Point.  (a-b-c 
⇒ out(a cb))
Proof
Definitions occuring in Statement : 
geo-out: out(p ab)
, 
basic-geometry: BasicGeometry
, 
geo-strict-between: a-b-c
, 
geo-point: Point
, 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
Definitions unfolded in proof : 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
, 
geo-strict-between: a-b-c
, 
and: P ∧ Q
, 
member: t ∈ T
, 
uall: ∀[x:A]. B[x]
, 
subtype_rel: A ⊆r B
, 
guard: {T}
, 
uimplies: b supposing a
, 
prop: ℙ
, 
basic-geometry: BasicGeometry
Latex:
\mforall{}e:BasicGeometry.  \mforall{}a,b,c:Point.    (a-b-c  {}\mRightarrow{}  out(a  cb))
Date html generated:
2020_05_20-AM-09_55_29
Last ObjectModification:
2020_01_14-AM-10_52_32
Theory : euclidean!plane!geometry
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