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| Mirrors > Home > ILE Home > Th. List > cvg1nlemf | GIF version | ||
| Description: Lemma for cvg1n 11671. The modified sequence 𝐺 is a sequence. (Contributed by Jim Kingdon, 1-Aug-2021.) |
| Ref | Expression |
|---|---|
| cvg1n.f | ⊢ (𝜑 → 𝐹:ℕ⟶ℝ) |
| cvg1n.c | ⊢ (𝜑 → 𝐶 ∈ ℝ+) |
| cvg1n.cau | ⊢ (𝜑 → ∀𝑛 ∈ ℕ ∀𝑘 ∈ (ℤ≥‘𝑛)((𝐹‘𝑛) < ((𝐹‘𝑘) + (𝐶 / 𝑛)) ∧ (𝐹‘𝑘) < ((𝐹‘𝑛) + (𝐶 / 𝑛)))) |
| cvg1nlem.g | ⊢ 𝐺 = (𝑗 ∈ ℕ ↦ (𝐹‘(𝑗 · 𝑍))) |
| cvg1nlem.z | ⊢ (𝜑 → 𝑍 ∈ ℕ) |
| cvg1nlem.start | ⊢ (𝜑 → 𝐶 < 𝑍) |
| Ref | Expression |
|---|---|
| cvg1nlemf | ⊢ (𝜑 → 𝐺:ℕ⟶ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cvg1n.f | . . . 4 ⊢ (𝜑 → 𝐹:ℕ⟶ℝ) | |
| 2 | 1 | adantr 276 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → 𝐹:ℕ⟶ℝ) |
| 3 | simpr 110 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → 𝑗 ∈ ℕ) | |
| 4 | cvg1nlem.z | . . . . 5 ⊢ (𝜑 → 𝑍 ∈ ℕ) | |
| 5 | 4 | adantr 276 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → 𝑍 ∈ ℕ) |
| 6 | 3, 5 | nnmulcld 9286 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → (𝑗 · 𝑍) ∈ ℕ) |
| 7 | 2, 6 | ffvelcdmd 5813 | . 2 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → (𝐹‘(𝑗 · 𝑍)) ∈ ℝ) |
| 8 | cvg1nlem.g | . 2 ⊢ 𝐺 = (𝑗 ∈ ℕ ↦ (𝐹‘(𝑗 · 𝑍))) | |
| 9 | 7, 8 | fmptd 5831 | 1 ⊢ (𝜑 → 𝐺:ℕ⟶ℝ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1398 ∈ wcel 2203 ∀wral 2520 class class class wbr 4109 ↦ cmpt 4171 ⟶wf 5348 ‘cfv 5352 (class class class)co 6050 ℝcr 8126 + caddc 8130 · cmul 8132 < clt 8308 / cdiv 8946 ℕcn 9237 ℤ≥cuz 9853 ℝ+crp 9986 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 ax-cnex 8218 ax-resscn 8219 ax-1cn 8220 ax-1re 8221 ax-icn 8222 ax-addcl 8223 ax-addrcl 8224 ax-mulcl 8225 ax-mulcom 8228 ax-addass 8229 ax-mulass 8230 ax-distr 8231 ax-1rid 8234 ax-cnre 8238 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2815 df-sbc 3043 df-un 3215 df-in 3217 df-ss 3224 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-int 3950 df-br 4110 df-opab 4172 df-mpt 4173 df-id 4414 df-xp 4755 df-rel 4756 df-cnv 4757 df-co 4758 df-dm 4759 df-rn 4760 df-res 4761 df-ima 4762 df-iota 5312 df-fun 5354 df-fn 5355 df-f 5356 df-fv 5360 df-ov 6053 df-inn 9238 |
| This theorem is referenced by: cvg1nlemres 11670 |
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