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| Mirrors > Home > ILE Home > Th. List > zre | GIF version | ||
| Description: An integer is a real. (Contributed by NM, 8-Jan-2002.) |
| Ref | Expression |
|---|---|
| zre | ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℝ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elz 9480 | . 2 ⊢ (𝑁 ∈ ℤ ↔ (𝑁 ∈ ℝ ∧ (𝑁 = 0 ∨ 𝑁 ∈ ℕ ∨ -𝑁 ∈ ℕ))) | |
| 2 | 1 | simplbi 274 | 1 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℝ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∨ w3o 1003 = wceq 1397 ∈ wcel 2202 ℝcr 8030 0cc0 8031 -cneg 8350 ℕcn 9142 ℤcz 9478 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3or 1005 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rex 2516 df-rab 2519 df-v 2804 df-un 3204 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-iota 5286 df-fv 5334 df-ov 6020 df-neg 8352 df-z 9479 |
| This theorem is referenced by: zcn 9483 zrei 9484 zssre 9485 elnn0z 9491 elnnz1 9501 peano2z 9514 zaddcl 9518 ztri3or0 9520 ztri3or 9521 zletric 9522 zlelttric 9523 zltnle 9524 zleloe 9525 zletr 9528 znnsub 9530 nzadd 9531 zltp1le 9533 zleltp1 9534 znn0sub 9544 zapne 9553 zdceq 9554 zdcle 9555 zdclt 9556 zltlen 9557 nn0ge0div 9566 zextle 9570 btwnnz 9573 suprzclex 9577 msqznn 9579 peano2uz2 9586 uzind 9590 fzind 9594 fnn0ind 9595 eluzuzle 9763 uzid 9769 uzneg 9774 uz11 9778 eluzp1m1 9779 eluzp1p1 9781 eluzaddi 9782 eluzsubi 9783 uzin 9788 uz3m2nn 9806 peano2uz 9816 nn0pzuz 9820 eluz2b2 9836 uz2mulcl 9841 eqreznegel 9847 lbzbi 9849 qre 9858 elpq 9882 zltaddlt1le 10241 elfz1eq 10269 fznlem 10275 fzen 10277 uzsubsubfz 10281 fzaddel 10293 fzsuc2 10313 fzp1disj 10314 fzrev 10318 elfz1b 10324 fzneuz 10335 fzp1nel 10338 elfz0fzfz0 10360 fz0fzelfz0 10361 fznn0sub2 10362 fz0fzdiffz0 10364 elfzmlbp 10366 difelfznle 10369 nelfzo 10386 elfzouz2 10396 fzo0n 10402 fzonlt0 10403 fzossrbm1 10409 fzo1fzo0n0 10421 elfzo0z 10422 fzofzim 10426 eluzgtdifelfzo 10441 fzossfzop1 10456 ssfzo12bi 10469 elfzomelpfzo 10475 fzosplitprm1 10479 fzostep1 10482 infssuzex 10492 flid 10543 flqbi2 10550 2tnp1ge0ge0 10560 flhalf 10561 fldiv4p1lem1div2 10564 fldiv4lem1div2uz2 10565 ceiqle 10574 uzsinds 10705 zsqcl2 10878 ccatsymb 11178 ccatval21sw 11181 lswccatn0lsw 11187 swrd0g 11240 swrdswrdlem 11284 swrdswrd 11285 swrdccatin2 11309 pfxccatin12lem2 11311 pfxccatin12lem3 11312 nn0abscl 11645 zmaxcl 11784 2zsupmax 11786 2zinfmin 11803 p1modz1 12354 evennn02n 12442 evennn2n 12443 ltoddhalfle 12453 bitsp1o 12513 dfgcd2 12584 algcvga 12622 isprm3 12689 dvdsnprmd 12696 sqnprm 12707 zgcdsq 12772 hashdvds 12792 fldivp1 12920 zgz 12945 4sqlem4 12964 4sqexercise1 12970 mulgval 13708 coskpi 15571 relogexp 15595 rplogbzexp 15677 zabsle1 15727 lgsne0 15766 gausslemma2dlem1a 15786 gausslemma2dlem3 15791 gausslemma2dlem4 15792 lgsquadlem1 15805 lgsquadlem2 15806 2lgslem1a1 15814 2lgslem1a2 15815 2sqlem2 15843 clwwlkext2edg 16272 |
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