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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 9525 | . 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 2202 ℝcr 8074 0cc0 8075 -cneg 8393 ℕcn 9185 ℤcz 9523 |
| 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 2213 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-rex 2517 df-rab 2520 df-v 2805 df-un 3205 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-iota 5293 df-fv 5341 df-ov 6031 df-neg 8395 df-z 9524 |
| This theorem is referenced by: zcn 9528 zrei 9529 zssre 9530 elnn0z 9536 elnnz1 9546 peano2z 9559 zaddcl 9563 ztri3or0 9565 ztri3or 9566 zletric 9567 zlelttric 9568 zltnle 9569 zleloe 9570 zletr 9573 znnsub 9575 nzadd 9576 zltp1le 9578 zleltp1 9579 znn0sub 9589 zapne 9598 zdceq 9599 zdcle 9600 zdclt 9601 zltlen 9602 nn0ge0div 9611 zextle 9615 btwnnz 9618 suprzclex 9622 msqznn 9624 peano2uz2 9631 uzind 9635 fzind 9639 fnn0ind 9640 eluzuzle 9808 uzid 9814 uzneg 9819 uz11 9823 eluzp1m1 9824 eluzp1p1 9826 eluzaddi 9827 eluzsubi 9828 uzin 9833 uz3m2nn 9851 peano2uz 9861 nn0pzuz 9865 eluz2b2 9881 uz2mulcl 9886 eqreznegel 9892 lbzbi 9894 qre 9903 elpq 9927 zltaddlt1le 10287 elfz1eq 10315 fznlem 10321 fzen 10323 uzsubsubfz 10327 fzaddel 10339 fzsuc2 10359 fzp1disj 10360 fzrev 10364 elfz1b 10370 fzneuz 10381 fzp1nel 10384 elfz0fzfz0 10406 fz0fzelfz0 10407 fznn0sub2 10408 fz0fzdiffz0 10410 elfzmlbp 10412 difelfznle 10415 nelfzo 10432 elfzouz2 10442 fzo0n 10448 fzonlt0 10449 fzossrbm1 10455 fzo1fzo0n0 10468 elfzo0z 10469 fzofzim 10473 eluzgtdifelfzo 10488 fzossfzop1 10503 ssfzo12bi 10516 elfzomelpfzo 10522 fzosplitprm1 10526 fzostep1 10529 infssuzex 10539 flid 10590 flqbi2 10597 2tnp1ge0ge0 10607 flhalf 10608 fldiv4p1lem1div2 10611 fldiv4lem1div2uz2 10612 ceiqle 10621 uzsinds 10752 zsqcl2 10925 ccatsymb 11228 ccatval21sw 11231 lswccatn0lsw 11237 swrd0g 11290 swrdswrdlem 11334 swrdswrd 11335 swrdccatin2 11359 pfxccatin12lem2 11361 pfxccatin12lem3 11362 nn0abscl 11708 zmaxcl 11847 2zsupmax 11849 2zinfmin 11866 p1modz1 12418 evennn02n 12506 evennn2n 12507 ltoddhalfle 12517 bitsp1o 12577 dfgcd2 12648 algcvga 12686 isprm3 12753 dvdsnprmd 12760 sqnprm 12771 zgcdsq 12836 hashdvds 12856 fldivp1 12984 zgz 13009 4sqlem4 13028 4sqexercise1 13034 mulgval 13772 coskpi 15642 relogexp 15666 rplogbzexp 15748 zabsle1 15801 lgsne0 15840 gausslemma2dlem1a 15860 gausslemma2dlem3 15865 gausslemma2dlem4 15866 lgsquadlem1 15879 lgsquadlem2 15880 2lgslem1a1 15888 2lgslem1a2 15889 2sqlem2 15917 clwwlkext2edg 16346 |
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