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Mirrors > Home > ILE Home > Th. List > nndomo | Unicode version |
Description: Cardinal ordering agrees with natural number ordering. Example 3 of [Enderton] p. 146. (Contributed by NM, 17-Jun-1998.) |
Ref | Expression |
---|---|
nndomo |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | php5dom 6349 | . . . . . . . 8 | |
2 | 1 | ad2antlr 472 | . . . . . . 7 |
3 | domtr 6288 | . . . . . . . . 9 | |
4 | 3 | expcom 114 | . . . . . . . 8 |
5 | 4 | adantl 271 | . . . . . . 7 |
6 | 2, 5 | mtod 621 | . . . . . 6 |
7 | ssdomg 6281 | . . . . . . 7 | |
8 | 7 | ad2antrr 471 | . . . . . 6 |
9 | 6, 8 | mtod 621 | . . . . 5 |
10 | nnord 4352 | . . . . . . 7 | |
11 | ordsucss 4248 | . . . . . . 7 | |
12 | 10, 11 | syl 14 | . . . . . 6 |
13 | 12 | ad2antrr 471 | . . . . 5 |
14 | 9, 13 | mtod 621 | . . . 4 |
15 | nntri1 6097 | . . . . 5 | |
16 | 15 | adantr 270 | . . . 4 |
17 | 14, 16 | mpbird 165 | . . 3 |
18 | 17 | ex 113 | . 2 |
19 | ssdomg 6281 | . . 3 | |
20 | 19 | adantl 271 | . 2 |
21 | 18, 20 | impbid 127 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 102 wb 103 wcel 1433 wss 2973 class class class wbr 3785 word 4117 csuc 4120 com 4331 cdom 6243 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 576 ax-in2 577 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-13 1444 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-nul 3904 ax-pow 3948 ax-pr 3964 ax-un 4188 ax-setind 4280 ax-iinf 4329 |
This theorem depends on definitions: df-bi 115 df-dc 776 df-3or 920 df-3an 921 df-tru 1287 df-fal 1290 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ne 2246 df-ral 2353 df-rex 2354 df-rab 2357 df-v 2603 df-sbc 2816 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-nul 3252 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-int 3637 df-br 3786 df-opab 3840 df-tr 3876 df-id 4048 df-iord 4121 df-on 4123 df-suc 4126 df-iom 4332 df-xp 4369 df-rel 4370 df-cnv 4371 df-co 4372 df-dm 4373 df-rn 4374 df-res 4375 df-ima 4376 df-iota 4887 df-fun 4924 df-fn 4925 df-f 4926 df-f1 4927 df-fo 4928 df-f1o 4929 df-fv 4930 df-er 6129 df-en 6245 df-dom 6246 |
This theorem is referenced by: fisbth 6367 fientri3 6381 |
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