Step * 1 1 of Lemma seg-midpoints-equal-flip


1. BasicGeometry
2. Point
3. Point
4. Point
5. Point
6. P=A=X
7. X=A=Q
8. X=A=P
⊢ P ≡ Q
BY
(InstLemma `symmetric-point-unicity` [⌜e⌝;⌜A⌝;⌜X⌝;⌜P⌝;⌜Q⌝]⋅ THENA Auto) }

1
1. BasicGeometry
2. Point
3. Point
4. Point
5. Point
6. P=A=X
7. X=A=Q
8. X=A=P
9. P ≡ Q
⊢ P ≡ Q


Latex:


Latex:

1.  e  :  BasicGeometry
2.  P  :  Point
3.  Q  :  Point
4.  A  :  Point
5.  X  :  Point
6.  P=A=X
7.  X=A=Q
8.  X=A=P
\mvdash{}  P  \mequiv{}  Q


By


Latex:
(InstLemma  `symmetric-point-unicity`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}A\mkleeneclose{};\mkleeneopen{}X\mkleeneclose{};\mkleeneopen{}P\mkleeneclose{};\mkleeneopen{}Q\mkleeneclose{}]\mcdot{}  THENA  Auto)




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