| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > nnwetri | Unicode version | ||
| Description: A natural number is
well-ordered by |
| Ref | Expression |
|---|---|
| nnwetri |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnord 4759 |
. . 3
| |
| 2 | ordwe 4723 |
. . 3
| |
| 3 | 1, 2 | syl 14 |
. 2
|
| 4 | simprl 535 |
. . . . 5
| |
| 5 | simpl 109 |
. . . . 5
| |
| 6 | elnn 4753 |
. . . . 5
| |
| 7 | 4, 5, 6 | syl2anc 415 |
. . . 4
|
| 8 | simprr 537 |
. . . . 5
| |
| 9 | elnn 4753 |
. . . . 5
| |
| 10 | 8, 5, 9 | syl2anc 415 |
. . . 4
|
| 11 | nntri3or 6766 |
. . . . 5
| |
| 12 | epel 4437 |
. . . . . 6
| |
| 13 | biid 171 |
. . . . . 6
| |
| 14 | epel 4437 |
. . . . . 6
| |
| 15 | 12, 13, 14 | 3orbi123i 1220 |
. . . . 5
|
| 16 | 11, 15 | sylibr 134 |
. . . 4
|
| 17 | 7, 10, 16 | syl2anc 415 |
. . 3
|
| 18 | 17 | ralrimivva 2632 |
. 2
|
| 19 | 3, 18 | jca 306 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-nul 4259 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-iinf 4735 |
| This proof depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4131 df-opab 4193 df-tr 4230 df-eprel 4434 df-frfor 4476 df-frind 4477 df-wetr 4479 df-iord 4511 df-on 4513 df-suc 4516 df-iom 4738 |
| This theorem is used by: (None) |
| Copyright terms: Public domain | W3C validator |