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Mirrors > Home > ILE Home > Th. List > nnwetri | Unicode version |
Description: A natural number is well-ordered by . More specifically, this order both satisfies and is trichotomous. (Contributed by Jim Kingdon, 25-Sep-2021.) |
Ref | Expression |
---|---|
nnwetri |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnord 4589 | . . 3 | |
2 | ordwe 4553 | . . 3 | |
3 | 1, 2 | syl 14 | . 2 |
4 | simprl 521 | . . . . 5 | |
5 | simpl 108 | . . . . 5 | |
6 | elnn 4583 | . . . . 5 | |
7 | 4, 5, 6 | syl2anc 409 | . . . 4 |
8 | simprr 522 | . . . . 5 | |
9 | elnn 4583 | . . . . 5 | |
10 | 8, 5, 9 | syl2anc 409 | . . . 4 |
11 | nntri3or 6461 | . . . . 5 | |
12 | epel 4270 | . . . . . 6 | |
13 | biid 170 | . . . . . 6 | |
14 | epel 4270 | . . . . . 6 | |
15 | 12, 13, 14 | 3orbi123i 1179 | . . . . 5 |
16 | 11, 15 | sylibr 133 | . . . 4 |
17 | 7, 10, 16 | syl2anc 409 | . . 3 |
18 | 17 | ralrimivva 2548 | . 2 |
19 | 3, 18 | jca 304 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 w3o 967 wcel 2136 wral 2444 class class class wbr 3982 cep 4265 wwe 4308 word 4340 com 4567 |
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 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-nul 4108 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 ax-iinf 4565 |
This theorem depends on definitions: df-bi 116 df-3or 969 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-v 2728 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-nul 3410 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-br 3983 df-opab 4044 df-tr 4081 df-eprel 4267 df-frfor 4309 df-frind 4310 df-wetr 4312 df-iord 4344 df-on 4346 df-suc 4349 df-iom 4568 |
This theorem is referenced by: (None) |
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