Step
*
of Lemma
infinitesmal-difference
∀[x,y:ℝ]. uiff(x = y;∀[k:ℕ+]. (|x - y| ≤ (r1/r(k))))
BY
{ ((UnivCD THENA (Auto THEN BLemma `rneq-int` THEN Auto))
THEN (RWO "infinitesmal-zero<" 0 THENA (Auto THEN BLemma `rneq-int` THEN Auto))
) }
1
1. x : ℝ
2. y : ℝ
⊢ uiff(x = y;(x - y) = r0)
Latex:
Latex:
\mforall{}[x,y:\mBbbR{}]. uiff(x = y;\mforall{}[k:\mBbbN{}\msupplus{}]. (|x - y| \mleq{} (r1/r(k))))
By
Latex:
((UnivCD THENA (Auto THEN BLemma `rneq-int` THEN Auto))
THEN (RWO "infinitesmal-zero<" 0 THENA (Auto THEN BLemma `rneq-int` THEN Auto))
)
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