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Mirrors > Home > ILE Home > Th. List > addvalex | Unicode version |
Description: Existence of a sum. This is dependent on how we define so once we proceed to real number axioms we will replace it with theorems such as addcl 7098. (Contributed by Jim Kingdon, 14-Jul-2021.) |
Ref | Expression |
---|---|
addvalex |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ov 5535 | . 2 | |
2 | df-nr 6904 | . . . . 5 | |
3 | npex 6663 | . . . . . . 7 | |
4 | 3, 3 | xpex 4471 | . . . . . 6 |
5 | 4 | qsex 6186 | . . . . 5 |
6 | 2, 5 | eqeltri 2151 | . . . 4 |
7 | df-add 6992 | . . . . 5 | |
8 | df-c 6987 | . . . . . . . . 9 | |
9 | 8 | eleq2i 2145 | . . . . . . . 8 |
10 | 8 | eleq2i 2145 | . . . . . . . 8 |
11 | 9, 10 | anbi12i 447 | . . . . . . 7 |
12 | 11 | anbi1i 445 | . . . . . 6 |
13 | 12 | oprabbii 5580 | . . . . 5 |
14 | 7, 13 | eqtri 2101 | . . . 4 |
15 | 6, 14 | oprabex3 5776 | . . 3 |
16 | opexg 3983 | . . 3 | |
17 | fvexg 5214 | . . 3 | |
18 | 15, 16, 17 | sylancr 405 | . 2 |
19 | 1, 18 | syl5eqel 2165 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 wceq 1284 wex 1421 wcel 1433 cvv 2601 cop 3401 cxp 4361 cfv 4922 (class class class)co 5532 coprab 5533 cqs 6128 cnp 6481 cer 6486 cnr 6487 cplr 6491 cc 6979 caddc 6984 |
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-coll 3893 ax-sep 3896 ax-pow 3948 ax-pr 3964 ax-un 4188 ax-iinf 4329 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 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-ral 2353 df-rex 2354 df-reu 2355 df-rab 2357 df-v 2603 df-sbc 2816 df-csb 2909 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-int 3637 df-iun 3680 df-br 3786 df-opab 3840 df-mpt 3841 df-id 4048 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-ov 5535 df-oprab 5536 df-qs 6135 df-ni 6494 df-nqqs 6538 df-inp 6656 df-nr 6904 df-c 6987 df-add 6992 |
This theorem is referenced by: peano2nnnn 7021 |
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