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| Mirrors > Home > MPE Home > Th. List > elfz3 | Structured version Visualization version GIF version | ||
| Description: Membership in a finite set of sequential integers containing one integer. (Contributed by NM, 21-Jul-2005.) |
| Ref | Expression |
|---|---|
| elfz3 | ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ (𝑁...𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uzid 12990 | . 2 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ (ℤ≥‘𝑁)) | |
| 2 | eluzfz1 13674 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝑁) → 𝑁 ∈ (𝑁...𝑁)) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ (𝑁...𝑁)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2146 ‘cfv 6546 (class class class)co 7427 ℤcz 12703 ℤ≥cuz 12975 ...cfz 13649 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5251 ax-nul 5262 ax-pow 5330 ax-pr 5394 ax-un 7758 ax-cnex 11266 ax-resscn 11267 ax-pre-lttri 11284 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rab 3416 df-v 3455 df-sbc 3742 df-csb 3851 df-ss 3900 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-pw 4561 df-sn 4588 df-pr 4590 df-op 4838 df-uni 4870 df-iun 4955 df-br 5106 df-opab 5170 df-mpt 5189 df-id 5549 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-ov 7430 df-oprab 7431 df-mpo 7432 df-1st 8008 df-2nd 8009 df-er 8728 df-en 8985 df-dom 8986 df-sdom 8987 df-pnf 11355 df-mnf 11356 df-xr 11357 df-ltxr 11358 df-le 11359 df-neg 11554 df-z 12704 df-uz 12976 df-fz 13650 |
| This theorem is used by: fzsn 13710 fz1sbc 13744 prinfzo0 13843 seqf1o 14196 hashbc 14608 vdwlem8 17178 vdwlem13 17183 coefv0 26579 coemulc 26586 0pthon 30730 |
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