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Step * 1 of Lemma sq_stable__geo-le


1. e : BasicGeometry
2. {p:Point| O_X_p}  ⊆r Length
3. p : Length
4. q : Length
⊢ SqStable(p ≤ q)
BY
{ (Unfold `geo-le` 0 THEN BLemma `sq_stable__squash`) }

1
.....wf..... 
1. e : BasicGeometry
2. {p:Point| O_X_p}  ⊆r Length
3. p : Length
4. q : Length
⊢ ∃p',q':{p:Point| O_X_p} . ((p' = p ∈ Length) ∧ (q' = q ∈ Length) ∧ X_p'_q') ∈ ℙ

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Latex:

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Latex:

1.  e  :  BasicGeometry
2.  \{p:Point|  O\_X\_p\}    \msubseteq{}r  Length
3.  p  :  Length
4.  q  :  Length
\mvdash{}  SqStable(p  \mleq{}  q)


By

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Latex:
(Unfold  `geo-le`  0  THEN  BLemma  `sq\_stable\_\_squash`)

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