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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 9596 | . 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 2205 ℝcr 8142 0cc0 8143 -cneg 8461 ℕcn 9254 ℤcz 9594 |
| 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 2216 |
| 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 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-rex 2528 df-rab 2531 df-v 2817 df-un 3218 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-iota 5317 df-fv 5365 df-ov 6061 df-neg 8463 df-z 9595 |
| This theorem is referenced by: zcn 9599 zrei 9600 zssre 9601 elnn0z 9607 elnnz1 9617 peano2z 9630 zaddcl 9634 ztri3or0 9636 ztri3or 9637 zletric 9638 zlelttric 9639 zltnle 9640 zleloe 9641 zletr 9644 znnsub 9646 nzadd 9647 zltp1le 9649 zleltp1 9650 znn0sub 9660 zapne 9669 zdceq 9670 zdcle 9671 zdclt 9672 zltlen 9674 nn0ge0div 9683 zextle 9687 btwnnz 9690 suprzclex 9694 msqznn 9696 peano2uz2 9703 uzind 9707 fzind 9711 fnn0ind 9712 eluzuzle 9880 uzid 9886 uzneg 9891 uz11 9895 eluzp1m1 9896 eluzp1p1 9898 eluzaddi 9899 eluzsubi 9900 uzin 9905 uz3m2nn 9923 peano2uz 9933 nn0pzuz 9937 eluz2b2 9953 uz2mulcl 9958 eqreznegel 9964 lbzbi 9966 qre 9975 elpq 9999 zltaddlt1le 10360 elfz1eq 10389 fznlem 10395 fzen 10397 uzsubsubfz 10401 fzaddel 10414 fzsuc2 10435 fzp1disj 10436 fzrev 10440 elfz1b 10446 fzneuz 10457 fzp1nel 10460 elfz0fzfz0 10482 fz0fzelfz0 10483 fznn0sub2 10484 fz0fzdiffz0 10486 elfzmlbp 10488 difelfznle 10491 nelfzo 10508 elfzouz2 10518 fzo0n 10524 fzonlt0 10525 fzossrbm1 10531 fzo1fzo0n0 10544 elfzo0z 10545 fzofzim 10549 eluzgtdifelfzo 10564 fzossfzop1 10579 ssfzo12bi 10592 elfzomelpfzo 10598 fzosplitprm1 10602 fzostep1 10605 infssuzex 10615 flid 10668 flqbi2 10675 2tnp1ge0ge0 10685 flhalf 10686 fldiv4p1lem1div2 10689 fldiv4lem1div2uz2 10690 ceiqle 10699 uzsinds 10830 zsqcl2 11003 ssenneg 11229 ccatsymb 11315 ccatval21sw 11318 lswccatn0lsw 11324 swrd0g 11377 swrdswrdlem 11421 swrdswrd 11422 swrdccatin2 11446 pfxccatin12lem2 11448 pfxccatin12lem3 11449 nn0abscl 11795 zmaxcl 11934 2zsupmax 11936 2zinfmin 11953 p1modz1 12505 evennn02n 12593 evennn2n 12594 ltoddhalfle 12604 bitsp1o 12664 dfgcd2 12735 algcvga 12773 isprm3 12840 dvdsnprmd 12847 sqnprm 12858 zgcdsq 12923 hashdvds 12943 fldivp1 13071 zgz 13096 4sqlem4 13115 4sqexercise1 13121 mulgval 13875 coskpi 15839 relogexp 15863 rplogbzexp 15945 zabsle1 15998 lgsne0 16037 gausslemma2dlem1a 16057 gausslemma2dlem3 16062 gausslemma2dlem4 16063 lgsquadlem1 16076 lgsquadlem2 16077 2lgslem1a1 16085 2lgslem1a2 16086 2sqlem2 16114 clwwlkext2edg 16543 |
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