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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 7878. (Contributed by Jim Kingdon, 14-Jul-2021.) |
Ref | Expression |
---|---|
addvalex |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ov 5845 | . 2 | |
2 | df-nr 7668 | . . . . 5 | |
3 | npex 7414 | . . . . . . 7 | |
4 | 3, 3 | xpex 4719 | . . . . . 6 |
5 | 4 | qsex 6558 | . . . . 5 |
6 | 2, 5 | eqeltri 2239 | . . . 4 |
7 | df-add 7764 | . . . . 5 | |
8 | df-c 7759 | . . . . . . . . 9 | |
9 | 8 | eleq2i 2233 | . . . . . . . 8 |
10 | 8 | eleq2i 2233 | . . . . . . . 8 |
11 | 9, 10 | anbi12i 456 | . . . . . . 7 |
12 | 11 | anbi1i 454 | . . . . . 6 |
13 | 12 | oprabbii 5897 | . . . . 5 |
14 | 7, 13 | eqtri 2186 | . . . 4 |
15 | 6, 14 | oprabex3 6097 | . . 3 |
16 | opexg 4206 | . . 3 | |
17 | fvexg 5505 | . . 3 | |
18 | 15, 16, 17 | sylancr 411 | . 2 |
19 | 1, 18 | eqeltrid 2253 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wceq 1343 wex 1480 wcel 2136 cvv 2726 cop 3579 cxp 4602 cfv 5188 (class class class)co 5842 coprab 5843 cqs 6500 cnp 7232 cer 7237 cnr 7238 cplr 7242 cc 7751 caddc 7756 |
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-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-coll 4097 ax-sep 4100 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-iinf 4565 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-reu 2451 df-rab 2453 df-v 2728 df-sbc 2952 df-csb 3046 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-iun 3868 df-br 3983 df-opab 4044 df-mpt 4045 df-id 4271 df-iom 4568 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-f1 5193 df-fo 5194 df-f1o 5195 df-fv 5196 df-ov 5845 df-oprab 5846 df-qs 6507 df-ni 7245 df-nqqs 7289 df-inp 7407 df-nr 7668 df-c 7759 df-add 7764 |
This theorem is referenced by: peano2nnnn 7794 |
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