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| Mirrors > Home > ILE Home > Th. List > axaddcom | Unicode version | ||
| Description: Addition is commutative.
Axiom for real and complex numbers, derived
from set theory. This construction-dependent theorem should not be
referenced directly, nor should the proven axiom ax-addcom 8269 be used
later. Instead, use addcom 8453.
In the Metamath Proof Explorer this is not a complex number axiom but is instead proved from other axioms. That proof relies on real number trichotomy and it is not known whether it is possible to prove this from the other axioms without it. (Contributed by Jim Kingdon, 17-Jan-2020.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| axaddcom |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-c 8175 |
. 2
| |
| 2 | oveq1 6082 |
. . 3
| |
| 3 | oveq2 6083 |
. . 3
| |
| 4 | 2, 3 | eqeq12d 2253 |
. 2
|
| 5 | oveq2 6083 |
. . 3
| |
| 6 | oveq1 6082 |
. . 3
| |
| 7 | 5, 6 | eqeq12d 2253 |
. 2
|
| 8 | addcomsrg 8112 |
. . . . 5
| |
| 9 | 8 | ad2ant2r 513 |
. . . 4
|
| 10 | addcomsrg 8112 |
. . . . 5
| |
| 11 | 10 | ad2ant2l 512 |
. . . 4
|
| 12 | 9, 11 | opeq12d 3907 |
. . 3
|
| 13 | addcnsr 8191 |
. . 3
| |
| 14 | addcnsr 8191 |
. . . 4
| |
| 15 | 14 | ancoms 268 |
. . 3
|
| 16 | 12, 13, 15 | 3eqtr4d 2281 |
. 2
|
| 17 | 1, 4, 7, 16 | 2optocl 4847 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-coll 4241 ax-sep 4244 ax-nul 4254 ax-pow 4306 ax-pr 4341 ax-un 4573 ax-setind 4679 ax-iinf 4730 |
| This theorem depends on definitions: df-bi 117 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-int 3966 df-iun 4009 df-br 4126 df-opab 4188 df-mpt 4189 df-tr 4225 df-eprel 4429 df-id 4433 df-po 4436 df-iso 4437 df-iord 4506 df-on 4508 df-suc 4511 df-iom 4733 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-rn 4780 df-res 4781 df-ima 4782 df-iota 5332 df-fun 5374 df-fn 5375 df-f 5376 df-f1 5377 df-fo 5378 df-f1o 5379 df-fv 5380 df-ov 6078 df-oprab 6079 df-mpo 6080 df-1st 6364 df-2nd 6365 df-recs 6566 df-irdg 6631 df-1o 6677 df-2o 6678 df-oadd 6681 df-omul 6682 df-er 6797 df-ec 6799 df-qs 6803 df-ni 7661 df-pli 7662 df-mi 7663 df-lti 7664 df-plpq 7701 df-mpq 7702 df-enq 7704 df-nqqs 7705 df-plqqs 7706 df-mqqs 7707 df-1nqqs 7708 df-rq 7709 df-ltnqqs 7710 df-enq0 7781 df-nq0 7782 df-0nq0 7783 df-plq0 7784 df-mq0 7785 df-inp 7823 df-iplp 7825 df-enr 8083 df-nr 8084 df-plr 8085 df-c 8175 df-add 8180 |
| This theorem is referenced by: (None) |
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