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Proof step 7 from proof even-mult (previous step)

2 * m0 = m * n ⊦ even(m), ∃ m0. 2 * m0 = m, ∃ m0. 2 * m0 = n

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 8:
⊦ ¬ even(n) ↔ odd(n)
Proof step 9:
2 * m0 = m * n ⊦ ¬ odd(m), ∃ m0. 2 * m0 = m, ∃ m0. 2 * m0 = n

Rule argument

spec: inst: name: eo-01 seq: ⊦ ¬ even(n) ↔ odd(n) subst: [n] → [m] flags: rewrite, current

Additional information

Used terms: m