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Mirrors > Home > ILE Home > Th. List > 2z | GIF version |
Description: Two is an integer. (Contributed by NM, 10-May-2004.) |
Ref | Expression |
---|---|
2z | ⊢ 2 ∈ ℤ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2nn 8881 | . 2 ⊢ 2 ∈ ℕ | |
2 | 1 | nnzi 9075 | 1 ⊢ 2 ∈ ℤ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1480 2c2 8771 ℤcz 9054 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-cnex 7711 ax-resscn 7712 ax-1cn 7713 ax-1re 7714 ax-icn 7715 ax-addcl 7716 ax-addrcl 7717 ax-mulcl 7718 ax-addcom 7720 ax-addass 7722 ax-distr 7724 ax-i2m1 7725 ax-0lt1 7726 ax-0id 7728 ax-rnegex 7729 ax-cnre 7731 ax-pre-ltirr 7732 ax-pre-ltwlin 7733 ax-pre-lttrn 7734 ax-pre-ltadd 7736 |
This theorem depends on definitions: df-bi 116 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-nel 2404 df-ral 2421 df-rex 2422 df-reu 2423 df-rab 2425 df-v 2688 df-sbc 2910 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-br 3930 df-opab 3990 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-iota 5088 df-fun 5125 df-fv 5131 df-riota 5730 df-ov 5777 df-oprab 5778 df-mpo 5779 df-pnf 7802 df-mnf 7803 df-xr 7804 df-ltxr 7805 df-le 7806 df-sub 7935 df-neg 7936 df-inn 8721 df-2 8779 df-z 9055 |
This theorem is referenced by: nn0n0n1ge2b 9130 nn0lt2 9132 nn0le2is012 9133 zadd2cl 9180 uzuzle23 9366 2eluzge1 9371 eluz2b1 9395 nn01to3 9409 nn0ge2m1nnALT 9410 ige2m1fz 9890 fzctr 9910 fzo0to2pr 9995 fzo0to42pr 9997 qbtwnre 10034 2tnp1ge0ge0 10074 flhalf 10075 m1modge3gt1 10144 q2txmodxeq0 10157 sq1 10386 expnass 10398 sqrecapd 10428 sqoddm1div8 10444 bcn2m1 10515 bcn2p1 10516 4bc2eq6 10520 resqrexlemcalc1 10786 resqrexlemnmsq 10789 resqrexlemcvg 10791 resqrexlemglsq 10794 resqrexlemga 10795 resqrexlemsqa 10796 efgt0 11390 tanval3ap 11421 cos01bnd 11465 cos01gt0 11469 egt2lt3 11486 zeo3 11565 odd2np1 11570 even2n 11571 oddm1even 11572 oddp1even 11573 oexpneg 11574 2tp1odd 11581 2teven 11584 evend2 11586 oddp1d2 11587 ltoddhalfle 11590 opoe 11592 omoe 11593 opeo 11594 omeo 11595 m1expo 11597 m1exp1 11598 nn0o1gt2 11602 nn0o 11604 z0even 11608 n2dvds1 11609 z2even 11611 n2dvds3 11612 z4even 11613 4dvdseven 11614 flodddiv4 11631 6gcd4e2 11683 3lcm2e6woprm 11767 isprm3 11799 prmind2 11801 dvdsnprmd 11806 prm2orodd 11807 2prm 11808 3prm 11809 oddprmge3 11815 divgcdodd 11821 pw2dvds 11844 sqrt2irraplemnn 11857 oddennn 11905 evenennn 11906 unennn 11910 exmidunben 11939 sincos6thpi 12923 ex-fl 12937 ex-dvds 12942 cvgcmp2nlemabs 13227 trilpolemlt1 13234 |
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