Step
*
1
1
1
of Lemma
geo-colinear-cong-tri-exists
.....assertion.....
1. e : BasicGeometry
2. c' : Point
3. a' : Point
4. a : Point
5. b : Point
6. c : Point
7. Colinear(a;b;a)
8. {aa ≅ a'c'}
9. c ≡ a
10. c' # a
11. a' ≡ c'
⊢ ∃b':Point. ab ≅ c'b'
BY
{ (gProlong ⌜a⌝ ⌜c'⌝ `x' ⌜a⌝ ⌜b⌝⋅ THEN Auto) }
Latex:
Latex:
.....assertion.....
1. e : BasicGeometry
2. c' : Point
3. a' : Point
4. a : Point
5. b : Point
6. c : Point
7. Colinear(a;b;a)
8. \{aa \mcong{} a'c'\}
9. c \mequiv{} a
10. c' \# a
11. a' \mequiv{} c'
\mvdash{} \mexists{}b':Point. ab \mcong{} c'b'
By
Latex:
(gProlong \mkleeneopen{}a\mkleeneclose{} \mkleeneopen{}c'\mkleeneclose{} `x' \mkleeneopen{}a\mkleeneclose{} \mkleeneopen{}b\mkleeneclose{}\mcdot{} THEN Auto)
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