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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 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnon 4581 | . . . . 5 | |
2 | 1 | ad3antlr 485 | . . . 4 |
3 | simpr 109 | . . . . 5 | |
4 | simprr 522 | . . . . . 6 | |
5 | 4 | adantr 274 | . . . . 5 |
6 | 3, 5 | jca 304 | . . . 4 |
7 | ontr1 4361 | . . . 4 | |
8 | 2, 6, 7 | sylc 62 | . . 3 |
9 | simpr 109 | . . . 4 | |
10 | 4 | adantr 274 | . . . 4 |
11 | 9, 10 | eqeltrd 2241 | . . 3 |
12 | simplrl 525 | . . . . 5 | |
13 | simpr 109 | . . . . 5 | |
14 | 12, 13 | sseldd 3138 | . . . 4 |
15 | simplr 520 | . . . . . . 7 | |
16 | elnn 4577 | . . . . . . 7 | |
17 | 4, 15, 16 | syl2anc 409 | . . . . . 6 |
18 | 17 | adantr 274 | . . . . 5 |
19 | nnord 4583 | . . . . 5 | |
20 | ordirr 4513 | . . . . 5 | |
21 | 18, 19, 20 | 3syl 17 | . . . 4 |
22 | 14, 21 | pm2.21dd 610 | . . 3 |
23 | simpll 519 | . . . 4 | |
24 | nntri3or 6452 | . . . 4 | |
25 | 23, 17, 24 | syl2anc 409 | . . 3 |
26 | 8, 11, 22, 25 | mpjao3dan 1296 | . 2 |
27 | 26 | ex 114 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 w3o 966 wceq 1342 wcel 2135 wss 3111 word 4334 con0 4335 com 4561 |
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 604 ax-in2 605 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-nul 4102 ax-pow 4147 ax-pr 4181 ax-un 4405 ax-setind 4508 ax-iinf 4559 |
This theorem depends on definitions: df-bi 116 df-3or 968 df-3an 969 df-tru 1345 df-nf 1448 df-sb 1750 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ne 2335 df-ral 2447 df-rex 2448 df-v 2723 df-dif 3113 df-un 3115 df-in 3117 df-ss 3124 df-nul 3405 df-pw 3555 df-sn 3576 df-pr 3577 df-uni 3784 df-int 3819 df-tr 4075 df-iord 4338 df-on 4340 df-suc 4343 df-iom 4562 |
This theorem is referenced by: (None) |
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