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Mirrors > Home > ILE Home > Th. List > cvg1nlemf | GIF version |
Description: Lemma for cvg1n 10950. 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 274 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → 𝐹:ℕ⟶ℝ) |
3 | simpr 109 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → 𝑗 ∈ ℕ) | |
4 | cvg1nlem.z | . . . . 5 ⊢ (𝜑 → 𝑍 ∈ ℕ) | |
5 | 4 | adantr 274 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → 𝑍 ∈ ℕ) |
6 | 3, 5 | nnmulcld 8927 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → (𝑗 · 𝑍) ∈ ℕ) |
7 | 2, 6 | ffvelrnd 5632 | . 2 ⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → (𝐹‘(𝑗 · 𝑍)) ∈ ℝ) |
8 | cvg1nlem.g | . 2 ⊢ 𝐺 = (𝑗 ∈ ℕ ↦ (𝐹‘(𝑗 · 𝑍))) | |
9 | 7, 8 | fmptd 5650 | 1 ⊢ (𝜑 → 𝐺:ℕ⟶ℝ) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 = wceq 1348 ∈ wcel 2141 ∀wral 2448 class class class wbr 3989 ↦ cmpt 4050 ⟶wf 5194 ‘cfv 5198 (class class class)co 5853 ℝcr 7773 + caddc 7777 · cmul 7779 < clt 7954 / cdiv 8589 ℕcn 8878 ℤ≥cuz 9487 ℝ+crp 9610 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 ax-cnex 7865 ax-resscn 7866 ax-1cn 7867 ax-1re 7868 ax-icn 7869 ax-addcl 7870 ax-addrcl 7871 ax-mulcl 7872 ax-mulcom 7875 ax-addass 7876 ax-mulass 7877 ax-distr 7878 ax-1rid 7881 ax-cnre 7885 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-rab 2457 df-v 2732 df-sbc 2956 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-br 3990 df-opab 4051 df-mpt 4052 df-id 4278 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-fv 5206 df-ov 5856 df-inn 8879 |
This theorem is referenced by: cvg1nlemres 10949 |
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