Nuprl Definition : geo-parallel
geo-parallel(e;a;b;c;d) ==  (a ≠ b ∧ c ≠ d) ∧ (∀x:Point. (Colinear(a;b;x) 
⇒ x # cd))
Definitions occuring in Statement : 
geo-lsep: a # bc
, 
geo-colinear: Colinear(a;b;c)
, 
geo-sep: a ≠ b
, 
geo-point: Point
, 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
, 
and: P ∧ Q
Definitions occuring in definition : 
and: P ∧ Q
, 
geo-sep: a ≠ b
, 
all: ∀x:A. B[x]
, 
geo-point: Point
, 
implies: P 
⇒ Q
, 
geo-colinear: Colinear(a;b;c)
, 
geo-lsep: a # bc
FDL editor aliases : 
geo-parallel
Latex:
geo-parallel(e;a;b;c;d)  ==    (a  \mneq{}  b  \mwedge{}  c  \mneq{}  d)  \mwedge{}  (\mforall{}x:Point.  (Colinear(a;b;x)  {}\mRightarrow{}  x  \#  cd))
Date html generated:
2018_05_22-PM-00_13_02
Last ObjectModification:
2017_10_12-AM-11_02_09
Theory : euclidean!plane!geometry
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