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Mirrors > Home > ILE Home > Th. List > weeq2 | Unicode version |
Description: Equality theorem for the well-ordering predicate. (Contributed by NM, 3-Apr-1994.) |
Ref | Expression |
---|---|
weeq2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | freq2 4238 | . . 3 | |
2 | raleq 2603 | . . . . 5 | |
3 | 2 | raleqbi1dv 2611 | . . . 4 |
4 | 3 | raleqbi1dv 2611 | . . 3 |
5 | 1, 4 | anbi12d 464 | . 2 |
6 | df-wetr 4226 | . 2 | |
7 | df-wetr 4226 | . 2 | |
8 | 5, 6, 7 | 3bitr4g 222 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1316 wral 2393 class class class wbr 3899 wfr 4220 wwe 4222 |
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-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 |
This theorem depends on definitions: df-bi 116 df-tru 1319 df-nf 1422 df-sb 1721 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-ral 2398 df-in 3047 df-ss 3054 df-frfor 4223 df-frind 4224 df-wetr 4226 |
This theorem is referenced by: reg3exmid 4464 |
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