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Mirrors > Home > ILE Home > Th. List > 0z | GIF version |
Description: Zero is an integer. (Contributed by NM, 12-Jan-2002.) |
Ref | Expression |
---|---|
0z | ⊢ 0 ∈ ℤ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0re 7773 | . 2 ⊢ 0 ∈ ℝ | |
2 | eqid 2139 | . . 3 ⊢ 0 = 0 | |
3 | 2 | 3mix1i 1153 | . 2 ⊢ (0 = 0 ∨ 0 ∈ ℕ ∨ -0 ∈ ℕ) |
4 | elz 9063 | . 2 ⊢ (0 ∈ ℤ ↔ (0 ∈ ℝ ∧ (0 = 0 ∨ 0 ∈ ℕ ∨ -0 ∈ ℕ))) | |
5 | 1, 3, 4 | mpbir2an 926 | 1 ⊢ 0 ∈ ℤ |
Colors of variables: wff set class |
Syntax hints: ∨ w3o 961 = wceq 1331 ∈ wcel 1480 ℝcr 7626 0cc0 7627 -cneg 7941 ℕcn 8727 ℤcz 9061 |
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-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-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-1re 7721 ax-addrcl 7724 ax-rnegex 7736 |
This theorem depends on definitions: df-bi 116 df-3or 963 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-rab 2425 df-v 2688 df-un 3075 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-iota 5088 df-fv 5131 df-ov 5777 df-neg 7943 df-z 9062 |
This theorem is referenced by: 0zd 9073 nn0ssz 9079 znegcl 9092 zgt0ge1 9119 nn0n0n1ge2b 9137 nn0lt10b 9138 nnm1ge0 9144 gtndiv 9153 msqznn 9158 zeo 9163 nn0ind 9172 fnn0ind 9174 nn0uz 9367 1eluzge0 9376 eqreznegel 9413 qreccl 9441 qdivcl 9442 irrmul 9446 fz10 9833 fz01en 9840 fzpreddisj 9858 fzshftral 9895 fznn0 9900 fz1ssfz0 9904 fz0tp 9908 elfz0ubfz0 9909 1fv 9923 lbfzo0 9965 elfzonlteqm1 9994 fzo01 10000 fzo0to2pr 10002 fzo0to3tp 10003 flqge0nn0 10073 divfl0 10076 btwnzge0 10080 modqmulnn 10122 zmodfz 10126 modqid 10129 zmodid2 10132 q0mod 10135 modqmuladdnn0 10148 frecfzennn 10206 qexpclz 10321 facdiv 10491 bcval 10502 bcnn 10510 bcm1k 10513 bcval5 10516 bcpasc 10519 4bc2eq6 10527 hashinfom 10531 rexfiuz 10768 qabsor 10854 nn0abscl 10864 nnabscl 10879 climz 11068 climaddc1 11105 climmulc2 11107 climsubc1 11108 climsubc2 11109 climlec2 11117 binomlem 11259 binom 11260 bcxmas 11265 arisum2 11275 explecnv 11281 ef0lem 11373 dvdsval2 11503 dvdsdc 11508 moddvds 11509 dvds0 11515 0dvds 11520 zdvdsdc 11521 dvdscmulr 11529 dvdsmulcr 11530 dvdslelemd 11548 dvdsabseq 11552 divconjdvds 11554 alzdvds 11559 fzo0dvdseq 11562 odd2np1lem 11576 gcdmndc 11644 gcdsupex 11653 gcdsupcl 11654 gcd0val 11656 gcddvds 11659 gcd0id 11674 gcdid0 11675 gcdid 11681 bezoutlema 11694 bezoutlemb 11695 bezoutlembi 11700 dfgcd3 11705 dfgcd2 11709 gcdmultiplez 11716 dvdssq 11726 algcvgblem 11737 lcmmndc 11750 lcm0val 11753 dvdslcm 11757 lcmeq0 11759 lcmgcd 11766 lcmdvds 11767 lcmid 11768 3lcm2e6woprm 11774 6lcm4e12 11775 cncongr2 11792 sqrt2irrap 11865 dfphi2 11903 phiprmpw 11905 crth 11907 phimullem 11908 hashgcdeq 11911 ennnfonelemjn 11922 ennnfonelem1 11927 |
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