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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 9625 | . 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 1008 = wceq 1402 ∈ wcel 2209 ℝcr 8168 0cc0 8169 -cneg 8488 ℕcn 9283 ℤcz 9623 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-rab 2537 df-v 2823 df-un 3224 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-iota 5332 df-fv 5380 df-ov 6078 df-neg 8490 df-z 9624 |
| This theorem is referenced by: zcn 9628 zrei 9629 zssre 9630 elnn0z 9636 elnnz1 9646 peano2z 9659 zaddcl 9663 ztri3or0 9665 ztri3or 9666 zletric 9667 zlelttric 9668 zltnle 9669 zleloe 9670 zletr 9673 znnsub 9675 nzadd 9676 zltp1le 9678 zleltp1 9679 znn0sub 9689 zapne 9698 zdceq 9699 zdcle 9700 zdclt 9701 zltlen 9703 nn0ge0div 9712 zextle 9716 btwnnz 9719 suprzclex 9723 msqznn 9725 peano2uz2 9732 uzind 9736 fzind 9740 fnn0ind 9741 eluzuzle 9909 uzid 9915 uzneg 9920 uz11 9924 eluzp1m1 9925 eluzp1p1 9927 eluzaddi 9928 eluzsubi 9929 uzin 9934 uz3m2nn 9952 peano2uz 9962 nn0pzuz 9966 eluz2b2 9982 uz2mulcl 9987 eqreznegel 9993 lbzbi 9995 qre 10004 elpq 10028 zltaddlt1le 10389 elfz1eq 10418 fznlem 10424 fzen 10426 uzsubsubfz 10430 fzaddel 10443 fzsuc2 10464 fzp1disj 10465 fzrev 10469 elfz1b 10475 fzneuz 10486 fzp1nel 10489 elfz0fzfz0 10511 fz0fzelfz0 10512 fznn0sub2 10513 fz0fzdiffz0 10515 elfzmlbp 10517 difelfznle 10520 nelfzo 10537 elfzouz2 10547 fzo0n 10553 fzonlt0 10554 fzossrbm1 10560 fzo1fzo0n0 10573 elfzo0z 10574 fzofzim 10578 eluzgtdifelfzo 10593 fzossfzop1 10608 ssfzo12bi 10621 elfzomelpfzo 10627 fzosplitprm1 10631 fzostep1 10634 infssuzex 10644 flid 10697 flqbi2 10704 2tnp1ge0ge0 10714 flhalf 10715 fldiv4p1lem1div2 10718 fldiv4lem1div2uz2 10719 ceiqle 10728 uzsinds 10859 zsqcl2 11032 ssenneg 11258 ccatsymb 11348 ccatval21sw 11351 lswccatn0lsw 11357 swrd0g 11410 swrdswrdlem 11454 swrdswrd 11455 swrdccatin2 11479 pfxccatin12lem2 11481 pfxccatin12lem3 11482 nn0abscl 11829 zmaxcl 11968 2zsupmax 11970 2zinfmin 11987 p1modz1 12539 evennn02n 12627 evennn2n 12628 ltoddhalfle 12638 bitsp1o 12698 dfgcd2 12769 algcvga 12807 isprm3 12874 dvdsnprmd 12881 sqnprm 12892 zgcdsq 12957 hashdvds 12977 fldivp1 13105 zgz 13130 4sqlem4 13149 4sqexercise1 13155 mulgval 13902 coskpi 15872 relogexp 15896 rplogbzexp 15979 zabsle1 16032 lgsne0 16071 gausslemma2dlem1a 16091 gausslemma2dlem3 16096 gausslemma2dlem4 16097 lgsquadlem1 16110 lgsquadlem2 16111 2lgslem1a1 16119 2lgslem1a2 16120 2sqlem2 16148 clwwlkext2edg 16577 |
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