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Mirrors > Home > ILE Home > Th. List > addpiord | Unicode version |
Description: Positive integer addition in terms of ordinal addition. (Contributed by NM, 27-Aug-1995.) |
Ref | Expression |
---|---|
addpiord |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opelxpi 4571 | . 2 | |
2 | fvres 5445 | . . 3 | |
3 | df-ov 5777 | . . . 4 | |
4 | df-pli 7113 | . . . . 5 | |
5 | 4 | fveq1i 5422 | . . . 4 |
6 | 3, 5 | eqtri 2160 | . . 3 |
7 | df-ov 5777 | . . 3 | |
8 | 2, 6, 7 | 3eqtr4g 2197 | . 2 |
9 | 1, 8 | syl 14 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wceq 1331 wcel 1480 cop 3530 cxp 4537 cres 4541 cfv 5123 (class class class)co 5774 coa 6310 cnpi 7080 cpli 7081 |
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 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-opab 3990 df-xp 4545 df-res 4551 df-iota 5088 df-fv 5131 df-ov 5777 df-pli 7113 |
This theorem is referenced by: addclpi 7135 addcompig 7137 addasspig 7138 distrpig 7141 addcanpig 7142 addnidpig 7144 ltexpi 7145 ltapig 7146 1lt2pi 7148 indpi 7150 archnqq 7225 prarloclemarch2 7227 nqnq0a 7262 |
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