Step
*
1
1
2
of Lemma
geo-krippen-aux
1. e : BasicGeometry
2. a1 : Point
3. a2 : Point
4. b1 : Point
5. b2 : Point
6. c : Point
7. m1 : Point
8. m2 : Point
9. a1_c_a2
10. b1_c_b2
11. ca1 ≅ cb1
12. ca2 ≅ cb2
13. a1=m1=b1
14. a2=m2=b2
15. |ca1| ≤ |ca2|
16. a2 ≠ c
17. a : Point
18. a2=c=a
19. b : Point
20. b2=c=b
21. m2 ≠ c
22. m : Point
23. m2=c=m
⊢ am ≅ mb
BY
{ ((D 14 THEN InstLemma `geo-midpoint-diagonals-congruent2` [⌜e⌝;⌜a2⌝;⌜m2⌝;⌜m2⌝;⌜b2⌝;⌜a⌝;⌜m⌝;⌜m⌝;⌜b⌝;⌜c⌝]⋅) THEN Auto) }
Latex:
Latex:
1. e : BasicGeometry
2. a1 : Point
3. a2 : Point
4. b1 : Point
5. b2 : Point
6. c : Point
7. m1 : Point
8. m2 : Point
9. a1\_c\_a2
10. b1\_c\_b2
11. ca1 \00D0 cb1
12. ca2 \00D0 cb2
13. a1=m1=b1
14. a2=m2=b2
15. |ca1| \mleq{} |ca2|
16. a2 \mneq{} c
17. a : Point
18. a2=c=a
19. b : Point
20. b2=c=b
21. m2 \mneq{} c
22. m : Point
23. m2=c=m
\mvdash{} am \00D0 mb
By
Latex:
((D 14
THEN InstLemma `geo-midpoint-diagonals-congruent2` [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}a2\mkleeneclose{};\mkleeneopen{}m2\mkleeneclose{};\mkleeneopen{}m2\mkleeneclose{};\mkleeneopen{}b2\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}m\mkleeneclose{};\mkleeneopen{}m\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{}]\mcdot{}
)
THEN Auto
)
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