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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 9481 | . 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 8031 0cc0 8032 -cneg 8351 ℕcn 9143 ℤcz 9479 |
| 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 6021 df-neg 8353 df-z 9480 |
| This theorem is referenced by: zcn 9484 zrei 9485 zssre 9486 elnn0z 9492 elnnz1 9502 peano2z 9515 zaddcl 9519 ztri3or0 9521 ztri3or 9522 zletric 9523 zlelttric 9524 zltnle 9525 zleloe 9526 zletr 9529 znnsub 9531 nzadd 9532 zltp1le 9534 zleltp1 9535 znn0sub 9545 zapne 9554 zdceq 9555 zdcle 9556 zdclt 9557 zltlen 9558 nn0ge0div 9567 zextle 9571 btwnnz 9574 suprzclex 9578 msqznn 9580 peano2uz2 9587 uzind 9591 fzind 9595 fnn0ind 9596 eluzuzle 9764 uzid 9770 uzneg 9775 uz11 9779 eluzp1m1 9780 eluzp1p1 9782 eluzaddi 9783 eluzsubi 9784 uzin 9789 uz3m2nn 9807 peano2uz 9817 nn0pzuz 9821 eluz2b2 9837 uz2mulcl 9842 eqreznegel 9848 lbzbi 9850 qre 9859 elpq 9883 zltaddlt1le 10242 elfz1eq 10270 fznlem 10276 fzen 10278 uzsubsubfz 10282 fzaddel 10294 fzsuc2 10314 fzp1disj 10315 fzrev 10319 elfz1b 10325 fzneuz 10336 fzp1nel 10339 elfz0fzfz0 10361 fz0fzelfz0 10362 fznn0sub2 10363 fz0fzdiffz0 10365 elfzmlbp 10367 difelfznle 10370 nelfzo 10387 elfzouz2 10397 fzo0n 10403 fzonlt0 10404 fzossrbm1 10410 fzo1fzo0n0 10423 elfzo0z 10424 fzofzim 10428 eluzgtdifelfzo 10443 fzossfzop1 10458 ssfzo12bi 10471 elfzomelpfzo 10477 fzosplitprm1 10481 fzostep1 10484 infssuzex 10494 flid 10545 flqbi2 10552 2tnp1ge0ge0 10562 flhalf 10563 fldiv4p1lem1div2 10566 fldiv4lem1div2uz2 10567 ceiqle 10576 uzsinds 10707 zsqcl2 10880 ccatsymb 11183 ccatval21sw 11186 lswccatn0lsw 11192 swrd0g 11245 swrdswrdlem 11289 swrdswrd 11290 swrdccatin2 11314 pfxccatin12lem2 11316 pfxccatin12lem3 11317 nn0abscl 11663 zmaxcl 11802 2zsupmax 11804 2zinfmin 11821 p1modz1 12373 evennn02n 12461 evennn2n 12462 ltoddhalfle 12472 bitsp1o 12532 dfgcd2 12603 algcvga 12641 isprm3 12708 dvdsnprmd 12715 sqnprm 12726 zgcdsq 12791 hashdvds 12811 fldivp1 12939 zgz 12964 4sqlem4 12983 4sqexercise1 12989 mulgval 13727 coskpi 15591 relogexp 15615 rplogbzexp 15697 zabsle1 15747 lgsne0 15786 gausslemma2dlem1a 15806 gausslemma2dlem3 15811 gausslemma2dlem4 15812 lgsquadlem1 15825 lgsquadlem2 15826 2lgslem1a1 15834 2lgslem1a2 15835 2sqlem2 15863 clwwlkext2edg 16292 |
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