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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 9471 | . 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 1001 = wceq 1395 ∈ wcel 2200 ℝcr 8021 0cc0 8022 -cneg 8341 ℕcn 9133 ℤcz 9469 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3or 1003 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-rex 2514 df-rab 2517 df-v 2802 df-un 3202 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-iota 5284 df-fv 5332 df-ov 6016 df-neg 8343 df-z 9470 |
| This theorem is referenced by: zcn 9474 zrei 9475 zssre 9476 elnn0z 9482 elnnz1 9492 peano2z 9505 zaddcl 9509 ztri3or0 9511 ztri3or 9512 zletric 9513 zlelttric 9514 zltnle 9515 zleloe 9516 zletr 9519 znnsub 9521 nzadd 9522 zltp1le 9524 zleltp1 9525 znn0sub 9535 zapne 9544 zdceq 9545 zdcle 9546 zdclt 9547 zltlen 9548 nn0ge0div 9557 zextle 9561 btwnnz 9564 suprzclex 9568 msqznn 9570 peano2uz2 9577 uzind 9581 fzind 9585 fnn0ind 9586 eluzuzle 9754 uzid 9760 uzneg 9765 uz11 9769 eluzp1m1 9770 eluzp1p1 9772 eluzaddi 9773 eluzsubi 9774 uzin 9779 uz3m2nn 9797 peano2uz 9807 nn0pzuz 9811 eluz2b2 9827 uz2mulcl 9832 eqreznegel 9838 lbzbi 9840 qre 9849 elpq 9873 zltaddlt1le 10232 elfz1eq 10260 fznlem 10266 fzen 10268 uzsubsubfz 10272 fzaddel 10284 fzsuc2 10304 fzp1disj 10305 fzrev 10309 elfz1b 10315 fzneuz 10326 fzp1nel 10329 elfz0fzfz0 10351 fz0fzelfz0 10352 fznn0sub2 10353 fz0fzdiffz0 10355 elfzmlbp 10357 difelfznle 10360 nelfzo 10377 elfzouz2 10387 fzo0n 10393 fzonlt0 10394 fzossrbm1 10400 fzo1fzo0n0 10412 elfzo0z 10413 fzofzim 10417 eluzgtdifelfzo 10432 fzossfzop1 10447 ssfzo12bi 10460 elfzomelpfzo 10466 fzosplitprm1 10470 fzostep1 10473 infssuzex 10483 flid 10534 flqbi2 10541 2tnp1ge0ge0 10551 flhalf 10552 fldiv4p1lem1div2 10555 fldiv4lem1div2uz2 10556 ceiqle 10565 uzsinds 10696 zsqcl2 10869 ccatsymb 11169 ccatval21sw 11172 lswccatn0lsw 11178 swrd0g 11231 swrdswrdlem 11275 swrdswrd 11276 swrdccatin2 11300 pfxccatin12lem2 11302 pfxccatin12lem3 11303 nn0abscl 11636 zmaxcl 11775 2zsupmax 11777 2zinfmin 11794 p1modz1 12345 evennn02n 12433 evennn2n 12434 ltoddhalfle 12444 bitsp1o 12504 dfgcd2 12575 algcvga 12613 isprm3 12680 dvdsnprmd 12687 sqnprm 12698 zgcdsq 12763 hashdvds 12783 fldivp1 12911 zgz 12936 4sqlem4 12955 4sqexercise1 12961 mulgval 13699 coskpi 15562 relogexp 15586 rplogbzexp 15668 zabsle1 15718 lgsne0 15757 gausslemma2dlem1a 15777 gausslemma2dlem3 15782 gausslemma2dlem4 15783 lgsquadlem1 15796 lgsquadlem2 15797 2lgslem1a1 15805 2lgslem1a2 15806 2sqlem2 15834 clwwlkext2edg 16217 |
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