Nuprl Lemma : geo-Aparallel_wf
∀[e:EuclideanPlane]. ∀[l,m:LINE].  (l || m ∈ ℙ)
Proof
Definitions occuring in Statement : 
geo-Aparallel: l || m
, 
geoline: LINE
, 
euclidean-plane: EuclideanPlane
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
member: t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
geo-Aparallel: l || m
Lemmas referenced : 
not_wf, 
geo-intersect_wf, 
geoline_wf, 
euclidean-plane_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
hypothesisEquality, 
hypothesis, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry, 
isect_memberEquality, 
because_Cache
Latex:
\mforall{}[e:EuclideanPlane].  \mforall{}[l,m:LINE].    (l  ||  m  \mmember{}  \mBbbP{})
Date html generated:
2018_05_22-PM-01_07_41
Last ObjectModification:
2018_05_10-PM-06_03_37
Theory : euclidean!plane!geometry
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