Step
*
1
of Lemma
basic-geo-cong-preserves-gt-prim2
1. g : GeometryPrimitives
2. ∀a,b,c,d:Point. (ab>cd
⇒ ab ≥ cd)
3. ∀a,b,c:Point. (ba>ac
⇒ b # c)
4. ∀a,b,c:Point. bc ≥ aa
5. ∀a,b,c,d,e,f:Point. (ab>cd
⇒ cd ≥ ef
⇒ ab>ef)
6. ∀a,b,c,d,e,f:Point. (ab ≥ cd
⇒ cd>ef
⇒ ab>ef)
7. ∀a,b,c:Point. (B(abc)
⇒ b # c
⇒ ac>ab)
8. ∀a,b,c:Point. (a leftof bc
⇒ b leftof ca)
9. ∀a,b,c:Point. (a leftof bc
⇒ b # c)
10. ∀a,b,c,d:Point. (B(abd)
⇒ B(bcd)
⇒ B(abc))
11. ∀a,b,c,d,A,B,C,D:Point. (a # b
⇒ B(abc)
⇒ B(ABC)
⇒ ab ≅ AB
⇒ bc ≅ BC
⇒ ad ≅ AD
⇒ bd ≅ BD
⇒ cd ≅ CD)
12. ∀a,b,c,x,y:Point. (ax ≅ ay
⇒ bx ≅ by
⇒ cx ≅ cy
⇒ x # y
⇒ (¬a # bc))
13. ∀a,b,x,y,z:Point. (x leftof ab
⇒ y leftof ab
⇒ B(xzy)
⇒ z leftof ab)
14. ∀a,b,c,y:Point. (a # bc
⇒ y # b
⇒ (¬y # ab)
⇒ y # bc)
15. a : Point
16. b : Point
17. c : Point
18. d : Point
19. e : Point
20. f : Point
21. ab>cd
22. cd ≅ ef
⊢ ab>ef
BY
{ ((InstHyp [⌜a⌝;⌜b⌝;⌜c⌝;⌜d⌝;⌜e⌝;⌜f⌝] (5)⋅ THEN Auto)
THEN (Unfold `geo-ge` 0 THEN Auto)
THEN Unfold `geo-congruent` -1
THEN Unfold `geo-length-sep` -1
THEN Auto) }
Latex:
Latex:
1. g : GeometryPrimitives
2. \mforall{}a,b,c,d:Point. (ab>cd {}\mRightarrow{} ab \mgeq{} cd)
3. \mforall{}a,b,c:Point. (ba>ac {}\mRightarrow{} b \# c)
4. \mforall{}a,b,c:Point. bc \mgeq{} aa
5. \mforall{}a,b,c,d,e,f:Point. (ab>cd {}\mRightarrow{} cd \mgeq{} ef {}\mRightarrow{} ab>ef)
6. \mforall{}a,b,c,d,e,f:Point. (ab \mgeq{} cd {}\mRightarrow{} cd>ef {}\mRightarrow{} ab>ef)
7. \mforall{}a,b,c:Point. (B(abc) {}\mRightarrow{} b \# c {}\mRightarrow{} ac>ab)
8. \mforall{}a,b,c:Point. (a leftof bc {}\mRightarrow{} b leftof ca)
9. \mforall{}a,b,c:Point. (a leftof bc {}\mRightarrow{} b \# c)
10. \mforall{}a,b,c,d:Point. (B(abd) {}\mRightarrow{} B(bcd) {}\mRightarrow{} B(abc))
11. \mforall{}a,b,c,d,A,B,C,D:Point.
(a \# b {}\mRightarrow{} B(abc) {}\mRightarrow{} B(ABC) {}\mRightarrow{} ab \mcong{} AB {}\mRightarrow{} bc \mcong{} BC {}\mRightarrow{} ad \mcong{} AD {}\mRightarrow{} bd \mcong{} BD {}\mRightarrow{} cd \mcong{} CD)
12. \mforall{}a,b,c,x,y:Point. (ax \mcong{} ay {}\mRightarrow{} bx \mcong{} by {}\mRightarrow{} cx \mcong{} cy {}\mRightarrow{} x \# y {}\mRightarrow{} (\mneg{}a \# bc))
13. \mforall{}a,b,x,y,z:Point. (x leftof ab {}\mRightarrow{} y leftof ab {}\mRightarrow{} B(xzy) {}\mRightarrow{} z leftof ab)
14. \mforall{}a,b,c,y:Point. (a \# bc {}\mRightarrow{} y \# b {}\mRightarrow{} (\mneg{}y \# ab) {}\mRightarrow{} y \# bc)
15. a : Point
16. b : Point
17. c : Point
18. d : Point
19. e : Point
20. f : Point
21. ab>cd
22. cd \mcong{} ef
\mvdash{} ab>ef
By
Latex:
((InstHyp [\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{};\mkleeneopen{}d\mkleeneclose{};\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}f\mkleeneclose{}] (5)\mcdot{} THEN Auto)
THEN (Unfold `geo-ge` 0 THEN Auto)
THEN Unfold `geo-congruent` -1
THEN Unfold `geo-length-sep` -1
THEN Auto)
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