Step
*
of Lemma
Euclid-prop16
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∀g:EuclideanPlane. ∀a,b,c,d:Point. (a # bc
⇒ b-c-d
⇒ (cba < acd ∧ bac < acd))
BY
{ Auto }
1
1. g : EuclideanPlane
2. a : Point
3. b : Point
4. c : Point
5. d : Point
6. a # bc
7. b-c-d
⊢ cba < acd
2
1. g : EuclideanPlane
2. a : Point
3. b : Point
4. c : Point
5. d : Point
6. a # bc
7. b-c-d
8. cba < acd
⊢ bac < acd
Latex:
Latex:
No Annotations
\mforall{}g:EuclideanPlane. \mforall{}a,b,c,d:Point. (a \# bc {}\mRightarrow{} b-c-d {}\mRightarrow{} (cba < acd \mwedge{} bac < acd))
By
Latex:
Auto
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