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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 9579 | . 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 1004 = wceq 1398 ∈ wcel 2203 ℝcr 8126 0cc0 8127 -cneg 8445 ℕcn 9237 ℤcz 9577 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-rex 2526 df-rab 2529 df-v 2815 df-un 3215 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-br 4110 df-iota 5312 df-fv 5360 df-ov 6053 df-neg 8447 df-z 9578 |
| This theorem is referenced by: zcn 9582 zrei 9583 zssre 9584 elnn0z 9590 elnnz1 9600 peano2z 9613 zaddcl 9617 ztri3or0 9619 ztri3or 9620 zletric 9621 zlelttric 9622 zltnle 9623 zleloe 9624 zletr 9627 znnsub 9629 nzadd 9630 zltp1le 9632 zleltp1 9633 znn0sub 9643 zapne 9652 zdceq 9653 zdcle 9654 zdclt 9655 zltlen 9656 nn0ge0div 9665 zextle 9669 btwnnz 9672 suprzclex 9676 msqznn 9678 peano2uz2 9685 uzind 9689 fzind 9693 fnn0ind 9694 eluzuzle 9862 uzid 9868 uzneg 9873 uz11 9877 eluzp1m1 9878 eluzp1p1 9880 eluzaddi 9881 eluzsubi 9882 uzin 9887 uz3m2nn 9905 peano2uz 9915 nn0pzuz 9919 eluz2b2 9935 uz2mulcl 9940 eqreznegel 9946 lbzbi 9948 qre 9957 elpq 9981 zltaddlt1le 10341 elfz1eq 10369 fznlem 10375 fzen 10377 uzsubsubfz 10381 fzaddel 10393 fzsuc2 10413 fzp1disj 10414 fzrev 10418 elfz1b 10424 fzneuz 10435 fzp1nel 10438 elfz0fzfz0 10460 fz0fzelfz0 10461 fznn0sub2 10462 fz0fzdiffz0 10464 elfzmlbp 10466 difelfznle 10469 nelfzo 10486 elfzouz2 10496 fzo0n 10502 fzonlt0 10503 fzossrbm1 10509 fzo1fzo0n0 10522 elfzo0z 10523 fzofzim 10527 eluzgtdifelfzo 10542 fzossfzop1 10557 ssfzo12bi 10570 elfzomelpfzo 10576 fzosplitprm1 10580 fzostep1 10583 infssuzex 10593 flid 10644 flqbi2 10651 2tnp1ge0ge0 10661 flhalf 10662 fldiv4p1lem1div2 10665 fldiv4lem1div2uz2 10666 ceiqle 10675 uzsinds 10806 zsqcl2 10979 ssenneg 11204 ccatsymb 11290 ccatval21sw 11293 lswccatn0lsw 11299 swrd0g 11352 swrdswrdlem 11396 swrdswrd 11397 swrdccatin2 11421 pfxccatin12lem2 11423 pfxccatin12lem3 11424 nn0abscl 11770 zmaxcl 11909 2zsupmax 11911 2zinfmin 11928 p1modz1 12480 evennn02n 12568 evennn2n 12569 ltoddhalfle 12579 bitsp1o 12639 dfgcd2 12710 algcvga 12748 isprm3 12815 dvdsnprmd 12822 sqnprm 12833 zgcdsq 12898 hashdvds 12918 fldivp1 13046 zgz 13071 4sqlem4 13090 4sqexercise1 13096 mulgval 13839 coskpi 15713 relogexp 15737 rplogbzexp 15819 zabsle1 15872 lgsne0 15911 gausslemma2dlem1a 15931 gausslemma2dlem3 15936 gausslemma2dlem4 15937 lgsquadlem1 15950 lgsquadlem2 15951 2lgslem1a1 15959 2lgslem1a2 15960 2sqlem2 15988 clwwlkext2edg 16417 |
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