Step
*
1
of Lemma
ni-max_wf
1. f : ℕ ⟶ 𝔹
2. ∀n:ℕ. ((↑(f (n + 1)))
⇒ (↑(f n)))
3. g : ℕ ⟶ 𝔹
4. ∀n:ℕ. ((↑(g (n + 1)))
⇒ (↑(g n)))
5. n : ℕ@i
6. ↑((f (n + 1)) ∨b(g (n + 1)))@i
⊢ (↑(f n)) ∨ (↑(g n))
BY
{ ((RW assert_pushdownC (-1) THENM D -1) THEN Auto) }
Latex:
Latex:
1. f : \mBbbN{} {}\mrightarrow{} \mBbbB{}
2. \mforall{}n:\mBbbN{}. ((\muparrow{}(f (n + 1))) {}\mRightarrow{} (\muparrow{}(f n)))
3. g : \mBbbN{} {}\mrightarrow{} \mBbbB{}
4. \mforall{}n:\mBbbN{}. ((\muparrow{}(g (n + 1))) {}\mRightarrow{} (\muparrow{}(g n)))
5. n : \mBbbN{}@i
6. \muparrow{}((f (n + 1)) \mvee{}\msubb{}(g (n + 1)))@i
\mvdash{} (\muparrow{}(f n)) \mvee{} (\muparrow{}(g n))
By
Latex:
((RW assert\_pushdownC (-1) THENM D -1) THEN Auto)
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