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| Mirrors > Home > MPE Home > Th. List > fzneuz | Structured version Visualization version GIF version | ||
| Description: No finite set of sequential integers equals an upper set of integers. (Contributed by NM, 11-Dec-2005.) |
| Ref | Expression |
|---|---|
| fzneuz | ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝐾 ∈ ℤ) → ¬ (𝑀...𝑁) = (ℤ≥‘𝐾)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | peano2uz 13068 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝐾) → (𝑁 + 1) ∈ (ℤ≥‘𝐾)) | |
| 2 | eluzelre 13016 | . . . . . . 7 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑁 ∈ ℝ) | |
| 3 | ltp1 12197 | . . . . . . . 8 ⊢ (𝑁 ∈ ℝ → 𝑁 < (𝑁 + 1)) | |
| 4 | peano2re 11522 | . . . . . . . . 9 ⊢ (𝑁 ∈ ℝ → (𝑁 + 1) ∈ ℝ) | |
| 5 | ltnle 11428 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℝ ∧ (𝑁 + 1) ∈ ℝ) → (𝑁 < (𝑁 + 1) ↔ ¬ (𝑁 + 1) ≤ 𝑁)) | |
| 6 | 4, 5 | mpdan 700 | . . . . . . . 8 ⊢ (𝑁 ∈ ℝ → (𝑁 < (𝑁 + 1) ↔ ¬ (𝑁 + 1) ≤ 𝑁)) |
| 7 | 3, 6 | mpbid 235 | . . . . . . 7 ⊢ (𝑁 ∈ ℝ → ¬ (𝑁 + 1) ≤ 𝑁) |
| 8 | 2, 7 | syl 18 | . . . . . 6 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → ¬ (𝑁 + 1) ≤ 𝑁) |
| 9 | elfzle2 13701 | . . . . . 6 ⊢ ((𝑁 + 1) ∈ (𝑀...𝑁) → (𝑁 + 1) ≤ 𝑁) | |
| 10 | 8, 9 | nsyl 141 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → ¬ (𝑁 + 1) ∈ (𝑀...𝑁)) |
| 11 | 10 | ad2antrr 739 | . . . 4 ⊢ (((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝐾 ∈ ℤ) ∧ 𝑁 ∈ (ℤ≥‘𝐾)) → ¬ (𝑁 + 1) ∈ (𝑀...𝑁)) |
| 12 | nelneq2 2889 | . . . 4 ⊢ (((𝑁 + 1) ∈ (ℤ≥‘𝐾) ∧ ¬ (𝑁 + 1) ∈ (𝑀...𝑁)) → ¬ (ℤ≥‘𝐾) = (𝑀...𝑁)) | |
| 13 | 1, 11, 12 | syl2an2 699 | . . 3 ⊢ (((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝐾 ∈ ℤ) ∧ 𝑁 ∈ (ℤ≥‘𝐾)) → ¬ (ℤ≥‘𝐾) = (𝑀...𝑁)) |
| 14 | eqcom 2770 | . . 3 ⊢ ((ℤ≥‘𝐾) = (𝑀...𝑁) ↔ (𝑀...𝑁) = (ℤ≥‘𝐾)) | |
| 15 | 13, 14 | sylnib 331 | . 2 ⊢ (((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝐾 ∈ ℤ) ∧ 𝑁 ∈ (ℤ≥‘𝐾)) → ¬ (𝑀...𝑁) = (ℤ≥‘𝐾)) |
| 16 | eluzfz2 13705 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑁 ∈ (𝑀...𝑁)) | |
| 17 | 16 | ad2antrr 739 | . . 3 ⊢ (((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝐾 ∈ ℤ) ∧ ¬ 𝑁 ∈ (ℤ≥‘𝐾)) → 𝑁 ∈ (𝑀...𝑁)) |
| 18 | nelneq2 2889 | . . 3 ⊢ ((𝑁 ∈ (𝑀...𝑁) ∧ ¬ 𝑁 ∈ (ℤ≥‘𝐾)) → ¬ (𝑀...𝑁) = (ℤ≥‘𝐾)) | |
| 19 | 17, 18 | sylancom 600 | . 2 ⊢ (((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝐾 ∈ ℤ) ∧ ¬ 𝑁 ∈ (ℤ≥‘𝐾)) → ¬ (𝑀...𝑁) = (ℤ≥‘𝐾)) |
| 20 | 15, 19 | pm2.61dan 825 | 1 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝐾 ∈ ℤ) → ¬ (𝑀...𝑁) = (ℤ≥‘𝐾)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2147 class class class wbr 5108 ‘cfv 6566 (class class class)co 7451 ℝcr 11238 1c1 11240 + caddc 11242 < clt 11382 ≤ cle 11383 ℤcz 12733 ℤ≥cuz 13005 ...cfz 13679 |
| 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 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 ax-cnex 11295 ax-resscn 11296 ax-1cn 11297 ax-icn 11298 ax-addcl 11299 ax-addrcl 11300 ax-mulcl 11301 ax-mulrcl 11302 ax-mulcom 11303 ax-addass 11304 ax-mulass 11305 ax-distr 11306 ax-i2m1 11307 ax-1ne0 11308 ax-1rid 11309 ax-rnegex 11310 ax-rrecex 11311 ax-cnre 11312 ax-pre-lttri 11313 ax-pre-lttrn 11314 ax-pre-ltadd 11315 ax-pre-mulgt0 11316 |
| 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 4841 df-uni 4873 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-pred 6330 df-ord 6391 df-on 6392 df-lim 6393 df-suc 6394 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-riota 7408 df-ov 7454 df-oprab 7455 df-mpo 7456 df-om 7912 df-1st 8035 df-2nd 8036 df-frecs 8337 df-wrecs 8368 df-recs 8417 df-rdg 8456 df-er 8755 df-en 9012 df-dom 9013 df-sdom 9014 df-pnf 11384 df-mnf 11385 df-xr 11386 df-ltxr 11387 df-le 11388 df-sub 11582 df-neg 11583 df-nn 12376 df-n0 12647 df-z 12734 df-uz 13006 df-fz 13680 |
| This theorem is used by: (None) |
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