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Mirrors > Home > ILE Home > Th. List > nntr2 | Unicode version |
Description: Transitive law for natural numbers. (Contributed by Jim Kingdon, 22-Jul-2023.) |
Ref | Expression |
---|---|
nntr2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnon 4611 |
. . . . 5
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2 | 1 | ad3antlr 493 |
. . . 4
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3 | simpr 110 |
. . . . 5
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4 | simprr 531 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
5 | 4 | adantr 276 |
. . . . 5
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6 | 3, 5 | jca 306 |
. . . 4
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7 | ontr1 4391 |
. . . 4
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8 | 2, 6, 7 | sylc 62 |
. . 3
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9 | simpr 110 |
. . . 4
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10 | 4 | adantr 276 |
. . . 4
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11 | 9, 10 | eqeltrd 2254 |
. . 3
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12 | simplrl 535 |
. . . . 5
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13 | simpr 110 |
. . . . 5
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14 | 12, 13 | sseldd 3158 |
. . . 4
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15 | simplr 528 |
. . . . . . 7
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16 | elnn 4607 |
. . . . . . 7
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17 | 4, 15, 16 | syl2anc 411 |
. . . . . 6
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18 | 17 | adantr 276 |
. . . . 5
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19 | nnord 4613 |
. . . . 5
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20 | ordirr 4543 |
. . . . 5
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21 | 18, 19, 20 | 3syl 17 |
. . . 4
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22 | 14, 21 | pm2.21dd 620 |
. . 3
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23 | simpll 527 |
. . . 4
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24 | nntri3or 6496 |
. . . 4
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25 | 23, 17, 24 | syl2anc 411 |
. . 3
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26 | 8, 11, 22, 25 | mpjao3dan 1307 |
. 2
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27 | 26 | ex 115 |
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-in1 614 ax-in2 615 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-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4123 ax-nul 4131 ax-pow 4176 ax-pr 4211 ax-un 4435 ax-setind 4538 ax-iinf 4589 |
This theorem depends on definitions: df-bi 117 df-3or 979 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-ne 2348 df-ral 2460 df-rex 2461 df-v 2741 df-dif 3133 df-un 3135 df-in 3137 df-ss 3144 df-nul 3425 df-pw 3579 df-sn 3600 df-pr 3601 df-uni 3812 df-int 3847 df-tr 4104 df-iord 4368 df-on 4370 df-suc 4373 df-iom 4592 |
This theorem is referenced by: (None) |
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