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Step * of Lemma rminus_functionality_wrt_rleq

∀[x,y:ℝ].  -(x) ≤ -(y) supposing x ≥ y
BY
{ Auto }

1
1. x : ℝ
2. y : ℝ
3. x ≥ y
⊢ -(x) ≤ -(y)

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Latex:

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Latex:
\mforall{}[x,y:\mBbbR{}].    -(x)  \mleq{}  -(y)  supposing  x  \mgeq{}  y


By

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Latex:
Auto

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