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Mirrors > Home > ILE Home > Th. List > zaddcl | Unicode version |
Description: Closure of addition of integers. (Contributed by NM, 9-May-2004.) (Proof shortened by Mario Carneiro, 16-May-2014.) |
Ref | Expression |
---|---|
zaddcl |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elz 8960 |
. . . 4
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2 | 1 | simprbi 271 |
. . 3
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3 | 2 | adantl 273 |
. 2
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4 | zcn 8963 |
. . . . . . 7
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5 | 4 | adantr 272 |
. . . . . 6
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6 | 5 | addid1d 7834 |
. . . . 5
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7 | simpl 108 |
. . . . 5
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8 | 6, 7 | eqeltrd 2191 |
. . . 4
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9 | oveq2 5736 |
. . . . 5
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10 | 9 | eleq1d 2183 |
. . . 4
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11 | 8, 10 | syl5ibrcom 156 |
. . 3
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12 | zaddcllempos 8995 |
. . . . 5
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13 | 12 | ex 114 |
. . . 4
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14 | 13 | adantr 272 |
. . 3
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15 | zre 8962 |
. . . 4
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16 | zaddcllemneg 8997 |
. . . . 5
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17 | 16 | 3expia 1166 |
. . . 4
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18 | 15, 17 | sylan2 282 |
. . 3
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19 | 11, 14, 18 | 3jaod 1265 |
. 2
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20 | 3, 19 | mpd 13 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 586 ax-in2 587 ax-io 681 ax-5 1406 ax-7 1407 ax-gen 1408 ax-ie1 1452 ax-ie2 1453 ax-8 1465 ax-10 1466 ax-11 1467 ax-i12 1468 ax-bndl 1469 ax-4 1470 ax-13 1474 ax-14 1475 ax-17 1489 ax-i9 1493 ax-ial 1497 ax-i5r 1498 ax-ext 2097 ax-sep 4006 ax-pow 4058 ax-pr 4091 ax-un 4315 ax-setind 4412 ax-cnex 7636 ax-resscn 7637 ax-1cn 7638 ax-1re 7639 ax-icn 7640 ax-addcl 7641 ax-addrcl 7642 ax-mulcl 7643 ax-addcom 7645 ax-addass 7647 ax-distr 7649 ax-i2m1 7650 ax-0lt1 7651 ax-0id 7653 ax-rnegex 7654 ax-cnre 7656 ax-pre-ltirr 7657 ax-pre-ltwlin 7658 ax-pre-lttrn 7659 ax-pre-ltadd 7661 |
This theorem depends on definitions: df-bi 116 df-3or 946 df-3an 947 df-tru 1317 df-fal 1320 df-nf 1420 df-sb 1719 df-eu 1978 df-mo 1979 df-clab 2102 df-cleq 2108 df-clel 2111 df-nfc 2244 df-ne 2283 df-nel 2378 df-ral 2395 df-rex 2396 df-reu 2397 df-rab 2399 df-v 2659 df-sbc 2879 df-dif 3039 df-un 3041 df-in 3043 df-ss 3050 df-pw 3478 df-sn 3499 df-pr 3500 df-op 3502 df-uni 3703 df-int 3738 df-br 3896 df-opab 3950 df-id 4175 df-xp 4505 df-rel 4506 df-cnv 4507 df-co 4508 df-dm 4509 df-iota 5046 df-fun 5083 df-fv 5089 df-riota 5684 df-ov 5731 df-oprab 5732 df-mpo 5733 df-pnf 7726 df-mnf 7727 df-xr 7728 df-ltxr 7729 df-le 7730 df-sub 7858 df-neg 7859 df-inn 8631 df-n0 8882 df-z 8959 |
This theorem is referenced by: zsubcl 8999 zrevaddcl 9008 zdivadd 9044 zaddcld 9081 eluzaddi 9254 eluzsubi 9255 eluzadd 9256 nn0pzuz 9284 fzen 9716 fzaddel 9732 fzrev3 9760 fzrevral3 9780 elfzmlbp 9802 fzoaddel 9862 zpnn0elfzo 9877 elfzomelpfzo 9901 fzoshftral 9908 climshftlemg 10963 fsumzcl 11063 summodnegmod 11372 dvds2ln 11374 dvds2add 11375 dvdsadd 11384 dvdsadd2b 11388 addmodlteqALT 11405 3dvdsdec 11410 3dvds2dec 11411 opoe 11440 opeo 11442 ndvdsadd 11476 |
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