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Mirrors > Home > ILE Home > Th. List > nnmulcl | Unicode version |
Description: Closure of multiplication of positive integers. (Contributed by NM, 12-Jan-1997.) |
Ref | Expression |
---|---|
nnmulcl |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq2 5877 |
. . . . 5
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2 | 1 | eleq1d 2246 |
. . . 4
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3 | 2 | imbi2d 230 |
. . 3
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4 | oveq2 5877 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
5 | 4 | eleq1d 2246 |
. . . 4
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
6 | 5 | imbi2d 230 |
. . 3
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7 | oveq2 5877 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
8 | 7 | eleq1d 2246 |
. . . 4
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9 | 8 | imbi2d 230 |
. . 3
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10 | oveq2 5877 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
11 | 10 | eleq1d 2246 |
. . . 4
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12 | 11 | imbi2d 230 |
. . 3
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13 | nncn 8916 |
. . . 4
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14 | mulid1 7945 |
. . . . . 6
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15 | 14 | eleq1d 2246 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
16 | 15 | biimprd 158 |
. . . 4
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17 | 13, 16 | mpcom 36 |
. . 3
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18 | nnaddcl 8928 |
. . . . . . . 8
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
19 | 18 | ancoms 268 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
20 | nncn 8916 |
. . . . . . . . 9
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21 | ax-1cn 7895 |
. . . . . . . . . . 11
![]() ![]() ![]() ![]() | |
22 | adddi 7934 |
. . . . . . . . . . 11
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23 | 21, 22 | mp3an3 1326 |
. . . . . . . . . 10
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24 | 14 | oveq2d 5885 |
. . . . . . . . . . 11
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25 | 24 | adantr 276 |
. . . . . . . . . 10
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26 | 23, 25 | eqtrd 2210 |
. . . . . . . . 9
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27 | 13, 20, 26 | syl2an 289 |
. . . . . . . 8
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28 | 27 | eleq1d 2246 |
. . . . . . 7
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29 | 19, 28 | syl5ibr 156 |
. . . . . 6
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30 | 29 | exp4b 367 |
. . . . 5
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31 | 30 | pm2.43b 52 |
. . . 4
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32 | 31 | a2d 26 |
. . 3
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33 | 3, 6, 9, 12, 17, 32 | nnind 8924 |
. 2
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34 | 33 | impcom 125 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-ext 2159 ax-sep 4118 ax-cnex 7893 ax-resscn 7894 ax-1cn 7895 ax-1re 7896 ax-icn 7897 ax-addcl 7898 ax-addrcl 7899 ax-mulcl 7900 ax-mulcom 7903 ax-addass 7904 ax-mulass 7905 ax-distr 7906 ax-1rid 7909 ax-cnre 7913 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ral 2460 df-rex 2461 df-rab 2464 df-v 2739 df-un 3133 df-in 3135 df-ss 3142 df-sn 3597 df-pr 3598 df-op 3600 df-uni 3808 df-int 3843 df-br 4001 df-iota 5174 df-fv 5220 df-ov 5872 df-inn 8909 |
This theorem is referenced by: nnmulcli 8930 nndivtr 8950 nnmulcld 8957 nn0mulcl 9201 qaddcl 9624 qmulcl 9626 modqmulnn 10328 nnexpcl 10519 nnsqcl 10575 faccl 10699 facdiv 10702 faclbnd3 10707 bcrpcl 10717 trirecip 11493 fprodnncl 11602 lcmgcdlem 12060 lcmgcdnn 12065 pcmptcl 12323 pcmpt 12324 mulgnnass 12906 |
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