Step
*
1
1
1
3
of Lemma
Euclid-Prop6
1. e : EuclideanPlane
2. a : Point
3. b : Point
4. c : Point
5. cab ≅a cba
6. c leftof ab
7. x : Point
8. Colinear(c;a;x)
9. ax ≅ bc
10. Cong3(axb,bca)
11. x leftof ab
12. xba ≅a cab ∧ cab ≅a cba ∧ cba ≅a xab
⊢ xba ≅a xab
BY
{ (RepeatFor 2 (D -1)
THEN (FLemma `geo-cong-angle-transitivity` [-2;-3] THENA Auto)
THEN FLemma `geo-cong-angle-transitivity` [-2;-1]
THEN Auto) }
Latex:
Latex:
1. e : EuclideanPlane
2. a : Point
3. b : Point
4. c : Point
5. cab \mcong{}\msuba{} cba
6. c leftof ab
7. x : Point
8. Colinear(c;a;x)
9. ax \mcong{} bc
10. Cong3(axb,bca)
11. x leftof ab
12. xba \mcong{}\msuba{} cab \mwedge{} cab \mcong{}\msuba{} cba \mwedge{} cba \mcong{}\msuba{} xab
\mvdash{} xba \mcong{}\msuba{} xab
By
Latex:
(RepeatFor 2 (D -1)
THEN (FLemma `geo-cong-angle-transitivity` [-2;-3] THENA Auto)
THEN FLemma `geo-cong-angle-transitivity` [-2;-1]
THEN Auto)
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