Step
*
2
1
of Lemma
rless-iff-large-diff
1. x : ℝ@i
2. y : ℝ@i
3. ∀b:ℕ+. ∃n:ℕ+. ∀m:ℕ+. ((n ≤ m)
⇒ (b ≤ ((y m) - x m)))@i
4. b : {4...}@i
5. ∃n:ℕ+. ∀m:ℕ+. ((n ≤ m)
⇒ ((b + 1) ≤ ((y m) - x m)))
⊢ ∃n:ℕ+. ∀m:{n...}. (x m) + b < y m
BY
{ RepeatFor 2 (ParallelLast) }
1
1. x : ℝ@i
2. y : ℝ@i
3. ∀b:ℕ+. ∃n:ℕ+. ∀m:ℕ+. ((n ≤ m)
⇒ (b ≤ ((y m) - x m)))@i
4. b : {4...}@i
5. n : ℕ+
6. ∀m:ℕ+. ((n ≤ m)
⇒ ((b + 1) ≤ ((y m) - x m)))
7. m : {n...}@i
8. (n ≤ m)
⇒ ((b + 1) ≤ ((y m) - x m))
⊢ (x m) + b < y m
Latex:
Latex:
1. x : \mBbbR{}@i
2. y : \mBbbR{}@i
3. \mforall{}b:\mBbbN{}\msupplus{}. \mexists{}n:\mBbbN{}\msupplus{}. \mforall{}m:\mBbbN{}\msupplus{}. ((n \mleq{} m) {}\mRightarrow{} (b \mleq{} ((y m) - x m)))@i
4. b : \{4...\}@i
5. \mexists{}n:\mBbbN{}\msupplus{}. \mforall{}m:\mBbbN{}\msupplus{}. ((n \mleq{} m) {}\mRightarrow{} ((b + 1) \mleq{} ((y m) - x m)))
\mvdash{} \mexists{}n:\mBbbN{}\msupplus{}. \mforall{}m:\{n...\}. (x m) + b < y m
By
Latex:
RepeatFor 2 (ParallelLast)
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