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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 4737 |
. . . . 5
| |
| 2 | 1 | ad3antlr 493 |
. . . 4
|
| 3 | simpr 110 |
. . . . 5
| |
| 4 | simprr 533 |
. . . . . 6
| |
| 5 | 4 | adantr 276 |
. . . . 5
|
| 6 | 3, 5 | jca 306 |
. . . 4
|
| 7 | ontr1 4515 |
. . . 4
| |
| 8 | 2, 6, 7 | sylc 62 |
. . 3
|
| 9 | simpr 110 |
. . . 4
| |
| 10 | 4 | adantr 276 |
. . . 4
|
| 11 | 9, 10 | eqeltrd 2311 |
. . 3
|
| 12 | simplrl 537 |
. . . . 5
| |
| 13 | simpr 110 |
. . . . 5
| |
| 14 | 12, 13 | sseldd 3243 |
. . . 4
|
| 15 | simplr 529 |
. . . . . . 7
| |
| 16 | elnn 4733 |
. . . . . . 7
| |
| 17 | 4, 15, 16 | syl2anc 411 |
. . . . . 6
|
| 18 | 17 | adantr 276 |
. . . . 5
|
| 19 | nnord 4739 |
. . . . 5
| |
| 20 | ordirr 4669 |
. . . . 5
| |
| 21 | 18, 19, 20 | 3syl 17 |
. . . 4
|
| 22 | 14, 21 | pm2.21dd 625 |
. . 3
|
| 23 | simpll 527 |
. . . 4
| |
| 24 | nntri3or 6739 |
. . . 4
| |
| 25 | 23, 17, 24 | syl2anc 411 |
. . 3
|
| 26 | 8, 11, 22, 25 | mpjao3dan 1344 |
. 2
|
| 27 | 26 | ex 115 |
1
|
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-nul 4241 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-setind 4664 ax-iinf 4715 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-v 2817 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-nul 3513 df-pw 3676 df-sn 3700 df-pr 3701 df-uni 3920 df-int 3955 df-tr 4214 df-iord 4492 df-on 4494 df-suc 4497 df-iom 4718 |
| This theorem is referenced by: (None) |
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