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| Mirrors > Home > MPE Home > Th. List > Mathboxes > itcovalpclem1 | Structured version Visualization version GIF version | ||
| Description: Lemma 1 for itcovalpc 50109: induction basis. (Contributed by AV, 4-May-2024.) |
| Ref | Expression |
|---|---|
| itcovalpc.f | ⊢ 𝐹 = (𝑛 ∈ ℕ0 ↦ (𝑛 + 𝐶)) |
| Ref | Expression |
|---|---|
| itcovalpclem1 | ⊢ (𝐶 ∈ ℕ0 → ((IterComp‘𝐹)‘0) = (𝑛 ∈ ℕ0 ↦ (𝑛 + (𝐶 · 0)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nn0ex 12650 | . . 3 ⊢ ℕ0 ∈ V | |
| 2 | ovexd 7484 | . . . 4 ⊢ (𝑛 ∈ ℕ0 → (𝑛 + 𝐶) ∈ V) | |
| 3 | 2 | rgen 3082 | . . 3 ⊢ ∀𝑛 ∈ ℕ0 (𝑛 + 𝐶) ∈ V |
| 4 | itcovalpc.f | . . . 4 ⊢ 𝐹 = (𝑛 ∈ ℕ0 ↦ (𝑛 + 𝐶)) | |
| 5 | 4 | itcoval0mpt 50103 | . . 3 ⊢ ((ℕ0 ∈ V ∧ ∀𝑛 ∈ ℕ0 (𝑛 + 𝐶) ∈ V) → ((IterComp‘𝐹)‘0) = (𝑛 ∈ ℕ0 ↦ 𝑛)) |
| 6 | 1, 3, 5 | mp2an 705 | . 2 ⊢ ((IterComp‘𝐹)‘0) = (𝑛 ∈ ℕ0 ↦ 𝑛) |
| 7 | nn0cn 12654 | . . . . . . 7 ⊢ (𝐶 ∈ ℕ0 → 𝐶 ∈ ℂ) | |
| 8 | 7 | mul01d 11546 | . . . . . 6 ⊢ (𝐶 ∈ ℕ0 → (𝐶 · 0) = 0) |
| 9 | 8 | adantr 486 | . . . . 5 ⊢ ((𝐶 ∈ ℕ0 ∧ 𝑛 ∈ ℕ0) → (𝐶 · 0) = 0) |
| 10 | 9 | oveq2d 7465 | . . . 4 ⊢ ((𝐶 ∈ ℕ0 ∧ 𝑛 ∈ ℕ0) → (𝑛 + (𝐶 · 0)) = (𝑛 + 0)) |
| 11 | nn0cn 12654 | . . . . . 6 ⊢ (𝑛 ∈ ℕ0 → 𝑛 ∈ ℂ) | |
| 12 | 11 | addridd 11547 | . . . . 5 ⊢ (𝑛 ∈ ℕ0 → (𝑛 + 0) = 𝑛) |
| 13 | 12 | adantl 487 | . . . 4 ⊢ ((𝐶 ∈ ℕ0 ∧ 𝑛 ∈ ℕ0) → (𝑛 + 0) = 𝑛) |
| 14 | 10, 13 | eqtr2d 2799 | . . 3 ⊢ ((𝐶 ∈ ℕ0 ∧ 𝑛 ∈ ℕ0) → 𝑛 = (𝑛 + (𝐶 · 0))) |
| 15 | 14 | mpteq2dva 5202 | . 2 ⊢ (𝐶 ∈ ℕ0 → (𝑛 ∈ ℕ0 ↦ 𝑛) = (𝑛 ∈ ℕ0 ↦ (𝑛 + (𝐶 · 0)))) |
| 16 | 6, 15 | eqtrid 2810 | 1 ⊢ (𝐶 ∈ ℕ0 → ((IterComp‘𝐹)‘0) = (𝑛 ∈ ℕ0 ↦ (𝑛 + (𝐶 · 0)))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 ∀wral 3080 Vcvv 3454 ↦ cmpt 5190 ‘cfv 6564 (class class class)co 7449 0cc0 11237 + caddc 11240 · cmul 11242 ℕ0cn0 12644 IterCompcitco 50094 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5236 ax-sep 5253 ax-nul 5264 ax-pow 5332 ax-pr 5396 ax-un 7781 ax-inf2 9677 ax-cnex 11293 ax-resscn 11294 ax-1cn 11295 ax-icn 11296 ax-addcl 11297 ax-addrcl 11298 ax-mulcl 11299 ax-mulrcl 11300 ax-mulcom 11301 ax-addass 11302 ax-mulass 11303 ax-distr 11304 ax-i2m1 11305 ax-1ne0 11306 ax-1rid 11307 ax-rnegex 11308 ax-rrecex 11309 ax-cnre 11310 ax-pre-lttri 11311 ax-pre-lttrn 11312 ax-pre-ltadd 11313 ax-pre-mulgt0 11314 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5551 df-eprel 5556 df-po 5564 df-so 5565 df-fr 5609 df-we 5611 df-xp 5662 df-rel 5663 df-cnv 5664 df-co 5665 df-dm 5666 df-rn 5667 df-res 5668 df-ima 5669 df-pred 6328 df-ord 6389 df-on 6390 df-lim 6391 df-suc 6392 df-iota 6518 df-fun 6566 df-fn 6567 df-f 6568 df-f1 6569 df-fo 6570 df-f1o 6571 df-fv 6572 df-riota 7406 df-ov 7452 df-oprab 7453 df-mpo 7454 df-om 7910 df-2nd 8034 df-frecs 8335 df-wrecs 8366 df-recs 8415 df-rdg 8454 df-er 8753 df-en 9010 df-dom 9011 df-sdom 9012 df-pnf 11382 df-mnf 11383 df-xr 11384 df-ltxr 11385 df-le 11386 df-sub 11580 df-neg 11581 df-nn 12374 df-n0 12645 df-z 12732 df-uz 13004 df-seq 14183 df-itco 50096 |
| This theorem is used by: itcovalpc 50109 |
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