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Mirrors > Home > MPE Home > Th. List > nn0disj | Structured version Visualization version GIF version |
Description: The first 𝑁 + 1 elements of the set of nonnegative integers are distinct from any later members. (Contributed by AV, 8-Nov-2019.) |
Ref | Expression |
---|---|
nn0disj | ⊢ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) = ∅ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elinel2 4192 | . . . . . 6 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑘 ∈ (ℤ≥‘(𝑁 + 1))) | |
2 | eluzle 12859 | . . . . . 6 ⊢ (𝑘 ∈ (ℤ≥‘(𝑁 + 1)) → (𝑁 + 1) ≤ 𝑘) | |
3 | 1, 2 | syl 17 | . . . . 5 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → (𝑁 + 1) ≤ 𝑘) |
4 | eluzel2 12851 | . . . . . . 7 ⊢ (𝑘 ∈ (ℤ≥‘(𝑁 + 1)) → (𝑁 + 1) ∈ ℤ) | |
5 | 1, 4 | syl 17 | . . . . . 6 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → (𝑁 + 1) ∈ ℤ) |
6 | eluzelz 12856 | . . . . . . 7 ⊢ (𝑘 ∈ (ℤ≥‘(𝑁 + 1)) → 𝑘 ∈ ℤ) | |
7 | 1, 6 | syl 17 | . . . . . 6 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑘 ∈ ℤ) |
8 | zlem1lt 12638 | . . . . . 6 ⊢ (((𝑁 + 1) ∈ ℤ ∧ 𝑘 ∈ ℤ) → ((𝑁 + 1) ≤ 𝑘 ↔ ((𝑁 + 1) − 1) < 𝑘)) | |
9 | 5, 7, 8 | syl2anc 583 | . . . . 5 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → ((𝑁 + 1) ≤ 𝑘 ↔ ((𝑁 + 1) − 1) < 𝑘)) |
10 | 3, 9 | mpbid 231 | . . . 4 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → ((𝑁 + 1) − 1) < 𝑘) |
11 | elinel1 4191 | . . . . . 6 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑘 ∈ (0...𝑁)) | |
12 | elfzle2 13531 | . . . . . 6 ⊢ (𝑘 ∈ (0...𝑁) → 𝑘 ≤ 𝑁) | |
13 | 11, 12 | syl 17 | . . . . 5 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑘 ≤ 𝑁) |
14 | 7 | zred 12690 | . . . . . . 7 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑘 ∈ ℝ) |
15 | elin 3961 | . . . . . . . . 9 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) ↔ (𝑘 ∈ (0...𝑁) ∧ 𝑘 ∈ (ℤ≥‘(𝑁 + 1)))) | |
16 | elfzel2 13525 | . . . . . . . . . 10 ⊢ (𝑘 ∈ (0...𝑁) → 𝑁 ∈ ℤ) | |
17 | 16 | adantr 480 | . . . . . . . . 9 ⊢ ((𝑘 ∈ (0...𝑁) ∧ 𝑘 ∈ (ℤ≥‘(𝑁 + 1))) → 𝑁 ∈ ℤ) |
18 | 15, 17 | sylbi 216 | . . . . . . . 8 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑁 ∈ ℤ) |
19 | 18 | zred 12690 | . . . . . . 7 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑁 ∈ ℝ) |
20 | 14, 19 | lenltd 11384 | . . . . . 6 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → (𝑘 ≤ 𝑁 ↔ ¬ 𝑁 < 𝑘)) |
21 | 18 | zcnd 12691 | . . . . . . . . . 10 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑁 ∈ ℂ) |
22 | pncan1 11662 | . . . . . . . . . 10 ⊢ (𝑁 ∈ ℂ → ((𝑁 + 1) − 1) = 𝑁) | |
23 | 21, 22 | syl 17 | . . . . . . . . 9 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → ((𝑁 + 1) − 1) = 𝑁) |
24 | 23 | eqcomd 2734 | . . . . . . . 8 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑁 = ((𝑁 + 1) − 1)) |
25 | 24 | breq1d 5152 | . . . . . . 7 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → (𝑁 < 𝑘 ↔ ((𝑁 + 1) − 1) < 𝑘)) |
26 | 25 | notbid 318 | . . . . . 6 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → (¬ 𝑁 < 𝑘 ↔ ¬ ((𝑁 + 1) − 1) < 𝑘)) |
27 | 20, 26 | bitrd 279 | . . . . 5 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → (𝑘 ≤ 𝑁 ↔ ¬ ((𝑁 + 1) − 1) < 𝑘)) |
28 | 13, 27 | mpbid 231 | . . . 4 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → ¬ ((𝑁 + 1) − 1) < 𝑘) |
29 | 10, 28 | pm2.21dd 194 | . . 3 ⊢ (𝑘 ∈ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) → 𝑘 ∈ ∅) |
30 | 29 | ssriv 3982 | . 2 ⊢ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) ⊆ ∅ |
31 | ss0 4394 | . 2 ⊢ (((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) ⊆ ∅ → ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) = ∅) | |
32 | 30, 31 | ax-mp 5 | 1 ⊢ ((0...𝑁) ∩ (ℤ≥‘(𝑁 + 1))) = ∅ |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 ↔ wb 205 ∧ wa 395 = wceq 1534 ∈ wcel 2099 ∩ cin 3944 ⊆ wss 3945 ∅c0 4318 class class class wbr 5142 ‘cfv 6542 (class class class)co 7414 ℂcc 11130 0cc0 11132 1c1 11133 + caddc 11135 < clt 11272 ≤ cle 11273 − cmin 11468 ℤcz 12582 ℤ≥cuz 12846 ...cfz 13510 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-cnex 11188 ax-resscn 11189 ax-1cn 11190 ax-icn 11191 ax-addcl 11192 ax-addrcl 11193 ax-mulcl 11194 ax-mulrcl 11195 ax-mulcom 11196 ax-addass 11197 ax-mulass 11198 ax-distr 11199 ax-i2m1 11200 ax-1ne0 11201 ax-1rid 11202 ax-rnegex 11203 ax-rrecex 11204 ax-cnre 11205 ax-pre-lttri 11206 ax-pre-lttrn 11207 ax-pre-ltadd 11208 ax-pre-mulgt0 11209 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2937 df-nel 3043 df-ral 3058 df-rex 3067 df-reu 3373 df-rab 3429 df-v 3472 df-sbc 3776 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-pss 3964 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7865 df-1st 7987 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-er 8718 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11274 df-mnf 11275 df-xr 11276 df-ltxr 11277 df-le 11278 df-sub 11470 df-neg 11471 df-nn 12237 df-n0 12497 df-z 12583 df-uz 12847 df-fz 13511 |
This theorem is referenced by: chfacfscmulgsum 22755 chfacfpmmulgsum 22759 nnuzdisj 44731 |
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