Nuprl Lemma : left-symmetry
∀g:EuclideanPlane. ∀a,b,c:Point. (a leftof bc ⇒ b leftof ca)
Proof
Definitions occuring in Statement :
euclidean-plane: EuclideanPlane,
geo-left: a leftof bc,
geo-point: Point,
all: ∀x:A. B[x],
implies: P ⇒ Q
Definitions unfolded in proof :
all: ∀x:A. B[x],
member: t ∈ T,
and: P ∧ Q,
cand: A c∧ B
Latex:
\mforall{}g:EuclideanPlane. \mforall{}a,b,c:Point. (a leftof bc {}\mRightarrow{} b leftof ca)
Date html generated:
2020_05_20-AM-09_47_18
Last ObjectModification:
2019_11_11-PM-04_19_21
Theory : euclidean!plane!geometry
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