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Step * 1 1 of Lemma not-same-parity-implies-even-odd


1. n : ℤ
2. m : ℤ
3. ¬↑isEven(m)
4. ↑isEven(n)
5. ↑isEven(n)
6. True
⊢ ↑isOdd(m)
BY
{ (RWO "odd-iff-not-even<" (-4) THEN Auto)⋅ }

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Latex:

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Latex:

1.  n  :  \mBbbZ{}
2.  m  :  \mBbbZ{}
3.  \mneg{}\muparrow{}isEven(m)
4.  \muparrow{}isEven(n)
5.  \muparrow{}isEven(n)
6.  True
\mvdash{}  \muparrow{}isOdd(m)


By

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Latex:
(RWO  "odd-iff-not-even<"  (-4)  THEN  Auto)\mcdot{}

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