Nuprl Lemma : circle-strict-overlap-implies-overlap
∀g:GeometryPrimitives. (BasicGeometryAxioms(g) 
⇒ (∀a,b,c,d:Point.  (StrictOverlap(a;b;c;d) 
⇒ Overlap(a;b;c;d))))
Proof
Definitions occuring in Statement : 
circle-strict-overlap: StrictOverlap(a;b;c;d)
, 
circle-overlap: Overlap(a;b;c;d)
, 
basic-geo-axioms: BasicGeometryAxioms(g)
, 
geo-primitives: GeometryPrimitives
, 
geo-point: Point
, 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
Definitions unfolded in proof : 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
, 
circle-strict-overlap: StrictOverlap(a;b;c;d)
, 
circle-overlap: Overlap(a;b;c;d)
, 
squash: ↓T
, 
exists: ∃x:A. B[x]
, 
and: P ∧ Q
, 
member: t ∈ T
, 
cand: A c∧ B
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
guard: {T}
, 
basic-geo-axioms: BasicGeometryAxioms(g)
Latex:
\mforall{}g:GeometryPrimitives
    (BasicGeometryAxioms(g)  {}\mRightarrow{}  (\mforall{}a,b,c,d:Point.    (StrictOverlap(a;b;c;d)  {}\mRightarrow{}  Overlap(a;b;c;d))))
Date html generated:
2020_05_20-AM-09_43_46
Last ObjectModification:
2019_11_13-PM-01_56_24
Theory : euclidean!plane!geometry
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