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Mirrors > Home > ILE Home > Th. List > ordom | Unicode version |
Description: Omega is ordinal. Theorem 7.32 of [TakeutiZaring] p. 43. (Contributed by NM, 18-Oct-1995.) |
Ref | Expression |
---|---|
ordom |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elnn 4328 |
. . . 4
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2 | 1 | gen2 1339 |
. . 3
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3 | dftr2 3856 |
. . 3
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4 | 2, 3 | mpbir 134 |
. 2
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5 | treq 3860 |
. . . 4
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6 | treq 3860 |
. . . 4
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7 | treq 3860 |
. . . 4
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8 | tr0 3865 |
. . . 4
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9 | suctr 4158 |
. . . . 5
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10 | 9 | a1i 9 |
. . . 4
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11 | 5, 6, 7, 6, 8, 10 | finds 4323 |
. . 3
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12 | 11 | rgen 2374 |
. 2
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13 | dford3 4104 |
. 2
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14 | 4, 12, 13 | mpbir2an 849 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-in1 544 ax-in2 545 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-13 1404 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-nul 3883 ax-pow 3927 ax-pr 3944 ax-un 4170 ax-iinf 4311 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-sb 1646 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ral 2311 df-rex 2312 df-v 2559 df-dif 2920 df-un 2922 df-in 2924 df-ss 2931 df-nul 3225 df-pw 3361 df-sn 3381 df-pr 3382 df-uni 3581 df-int 3616 df-tr 3855 df-iord 4103 df-suc 4108 df-iom 4314 |
This theorem is referenced by: omelon2 4330 limom 4336 |
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