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| Mirrors > Home > MPE Home > Th. List > Mathboxes > nn0diffz0 | Structured version Visualization version GIF version | ||
| Description: Upper set of the nonnegative integers. (Contributed by Thierry Arnoux, 25-Jan-2026.) |
| Ref | Expression |
|---|---|
| nn0diffz0 | ⊢ (𝑁 ∈ ℕ0 → (ℕ0 ∖ (0...𝑁)) = (ℤ≥‘(𝑁 + 1))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nn0uz 13030 | . . . 4 ⊢ ℕ0 = (ℤ≥‘0) | |
| 2 | peano2nn0 12673 | . . . . . 6 ⊢ (𝑁 ∈ ℕ0 → (𝑁 + 1) ∈ ℕ0) | |
| 3 | 2, 1 | eleqtrdi 2874 | . . . . 5 ⊢ (𝑁 ∈ ℕ0 → (𝑁 + 1) ∈ (ℤ≥‘0)) |
| 4 | fzouzsplit 13856 | . . . . 5 ⊢ ((𝑁 + 1) ∈ (ℤ≥‘0) → (ℤ≥‘0) = ((0..^(𝑁 + 1)) ∪ (ℤ≥‘(𝑁 + 1)))) | |
| 5 | 3, 4 | syl 18 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → (ℤ≥‘0) = ((0..^(𝑁 + 1)) ∪ (ℤ≥‘(𝑁 + 1)))) |
| 6 | 1, 5 | eqtrid 2810 | . . 3 ⊢ (𝑁 ∈ ℕ0 → ℕ0 = ((0..^(𝑁 + 1)) ∪ (ℤ≥‘(𝑁 + 1)))) |
| 7 | 6 | difeq1d 4065 | . 2 ⊢ (𝑁 ∈ ℕ0 → (ℕ0 ∖ (0...𝑁)) = (((0..^(𝑁 + 1)) ∪ (ℤ≥‘(𝑁 + 1))) ∖ (0...𝑁))) |
| 8 | uncom 4160 | . . . 4 ⊢ ((ℤ≥‘(𝑁 + 1)) ∪ (0...𝑁)) = ((0...𝑁) ∪ (ℤ≥‘(𝑁 + 1))) | |
| 9 | nn0z 12744 | . . . . . 6 ⊢ (𝑁 ∈ ℕ0 → 𝑁 ∈ ℤ) | |
| 10 | fzval3 13896 | . . . . . 6 ⊢ (𝑁 ∈ ℤ → (0...𝑁) = (0..^(𝑁 + 1))) | |
| 11 | 9, 10 | syl 18 | . . . . 5 ⊢ (𝑁 ∈ ℕ0 → (0...𝑁) = (0..^(𝑁 + 1))) |
| 12 | 11 | uneq1d 4169 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → ((0...𝑁) ∪ (ℤ≥‘(𝑁 + 1))) = ((0..^(𝑁 + 1)) ∪ (ℤ≥‘(𝑁 + 1)))) |
| 13 | 8, 12 | eqtrid 2810 | . . 3 ⊢ (𝑁 ∈ ℕ0 → ((ℤ≥‘(𝑁 + 1)) ∪ (0...𝑁)) = ((0..^(𝑁 + 1)) ∪ (ℤ≥‘(𝑁 + 1)))) |
| 14 | 13 | difeq1d 4065 | . 2 ⊢ (𝑁 ∈ ℕ0 → (((ℤ≥‘(𝑁 + 1)) ∪ (0...𝑁)) ∖ (0...𝑁)) = (((0..^(𝑁 + 1)) ∪ (ℤ≥‘(𝑁 + 1))) ∖ (0...𝑁))) |
| 15 | 11 | ineq2d 4120 | . . . 4 ⊢ (𝑁 ∈ ℕ0 → ((ℤ≥‘(𝑁 + 1)) ∩ (0...𝑁)) = ((ℤ≥‘(𝑁 + 1)) ∩ (0..^(𝑁 + 1)))) |
| 16 | fzouzdisj 13857 | . . . . 5 ⊢ ((0..^(𝑁 + 1)) ∩ (ℤ≥‘(𝑁 + 1))) = ∅ | |
| 17 | 16 | ineqcomi 4111 | . . . 4 ⊢ ((ℤ≥‘(𝑁 + 1)) ∩ (0..^(𝑁 + 1))) = ∅ |
| 18 | 15, 17 | eqtrdi 2814 | . . 3 ⊢ (𝑁 ∈ ℕ0 → ((ℤ≥‘(𝑁 + 1)) ∩ (0...𝑁)) = ∅) |
| 19 | undif5 4443 | . . 3 ⊢ (((ℤ≥‘(𝑁 + 1)) ∩ (0...𝑁)) = ∅ → (((ℤ≥‘(𝑁 + 1)) ∪ (0...𝑁)) ∖ (0...𝑁)) = (ℤ≥‘(𝑁 + 1))) | |
| 20 | 18, 19 | syl 18 | . 2 ⊢ (𝑁 ∈ ℕ0 → (((ℤ≥‘(𝑁 + 1)) ∪ (0...𝑁)) ∖ (0...𝑁)) = (ℤ≥‘(𝑁 + 1))) |
| 21 | 7, 14, 20 | 3eqtr2d 2804 | 1 ⊢ (𝑁 ∈ ℕ0 → (ℕ0 ∖ (0...𝑁)) = (ℤ≥‘(𝑁 + 1))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2147 ∖ cdif 4048 ∩ cin 4092 ∪ cun 4152 ∅c0 4281 ‘cfv 6558 (class class class)co 7443 0cc0 11227 1c1 11228 + caddc 11230 ℕ0cn0 12633 ℤcz 12720 ℤ≥cuz 12992 ...cfz 13666 ..^cfzo 13815 |
| 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-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-cnex 11283 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 ax-pre-mulgt0 11304 |
| 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 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6322 df-ord 6383 df-on 6384 df-lim 6385 df-suc 6386 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-om 7902 df-1st 8025 df-2nd 8026 df-frecs 8327 df-wrecs 8358 df-recs 8407 df-rdg 8446 df-er 8745 df-en 9002 df-dom 9003 df-sdom 9004 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-le 11376 df-sub 11570 df-neg 11571 df-nn 12363 df-n0 12634 df-z 12721 df-uz 12993 df-fz 13667 df-fzo 13816 |
| This theorem is used by: ply1coedeg 34191 esplyfval2 34267 esplyfval3 34274 |
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