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Step * of Lemma decidable__equal-coordinate_name

∀x,y:Cname.  Dec(x = y ∈ Cname)
BY
{ (Unfold `coordinate_name` 0 THEN Auto) }

1
.....decidable?..... 
1. x : {2...}@i
2. y : {2...}@i
⊢ Dec(x = y ∈ {2...})

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Latex:

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Latex:
\mforall{}x,y:Cname.    Dec(x  =  y)


By

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Latex:
(Unfold  `coordinate\_name`  0  THEN  Auto)

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