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| Mirrors > Home > MPE Home > Th. List > 0nelfz1 | Structured version Visualization version GIF version | ||
| Description: 0 is not an element of a finite interval of integers starting at 1. (Contributed by AV, 27-Aug-2020.) |
| Ref | Expression |
|---|---|
| 0nelfz1 | ⊢ 0 ∉ (1...𝑁) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0lt1 11720 | . . . . 5 ⊢ 0 < 1 | |
| 2 | 0re 11194 | . . . . . 6 ⊢ 0 ∈ ℝ | |
| 3 | 1re 11192 | . . . . . 6 ⊢ 1 ∈ ℝ | |
| 4 | 2, 3 | ltnlei 11315 | . . . . 5 ⊢ (0 < 1 ↔ ¬ 1 ≤ 0) |
| 5 | 1, 4 | mpbi 232 | . . . 4 ⊢ ¬ 1 ≤ 0 |
| 6 | 5 | intnanr 491 | . . 3 ⊢ ¬ (1 ≤ 0 ∧ 0 ≤ 𝑁) |
| 7 | 6 | intnan 490 | . 2 ⊢ ¬ ((1 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 0 ∈ ℤ) ∧ (1 ≤ 0 ∧ 0 ≤ 𝑁)) |
| 8 | df-nel 3063 | . . 3 ⊢ (0 ∉ (1...𝑁) ↔ ¬ 0 ∈ (1...𝑁)) | |
| 9 | elfz2 13529 | . . 3 ⊢ (0 ∈ (1...𝑁) ↔ ((1 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 0 ∈ ℤ) ∧ (1 ≤ 0 ∧ 0 ≤ 𝑁))) | |
| 10 | 8, 9 | xchbinx 336 | . 2 ⊢ (0 ∉ (1...𝑁) ↔ ¬ ((1 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 0 ∈ ℤ) ∧ (1 ≤ 0 ∧ 0 ≤ 𝑁))) |
| 11 | 7, 10 | mpbir 233 | 1 ⊢ 0 ∉ (1...𝑁) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 ∧ wa 399 ∧ w3a 1099 ∈ wcel 2143 ∉ wnel 3062 class class class wbr 5101 (class class class)co 7396 0cc0 11084 1c1 11085 < clt 11227 ≤ cle 11228 ℤcz 12578 ...cfz 13522 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7718 ax-cnex 11140 ax-resscn 11141 ax-1cn 11142 ax-icn 11143 ax-addcl 11144 ax-addrcl 11145 ax-mulcl 11146 ax-mulrcl 11147 ax-mulcom 11148 ax-addass 11149 ax-mulass 11150 ax-distr 11151 ax-i2m1 11152 ax-1ne0 11153 ax-1rid 11154 ax-rnegex 11155 ax-rrecex 11156 ax-cnre 11157 ax-pre-lttri 11158 ax-pre-lttrn 11159 ax-pre-ltadd 11160 ax-pre-mulgt0 11161 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5102 df-opab 5164 df-mpt 5183 df-id 5543 df-po 5556 df-so 5557 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-riota 7353 df-ov 7399 df-oprab 7400 df-mpo 7401 df-1st 7970 df-2nd 7971 df-er 8678 df-en 8928 df-dom 8929 df-sdom 8930 df-pnf 11229 df-mnf 11230 df-xr 11231 df-ltxr 11232 df-le 11233 df-sub 11427 df-neg 11428 df-z 12579 df-fz 13523 |
| This theorem is referenced by: lcmflefac 16692 prmodvdslcmf 17093 prmolelcmf 17094 prmgaplcmlem2 17098 prmgaplcm 17106 f1resfz0f1d 35468 |
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