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Mirrors > Home > ILE Home > Th. List > addex | GIF version |
Description: The addition operation is a set. (Contributed by NM, 19-Oct-2004.) (Revised by Mario Carneiro, 17-Nov-2014.) |
Ref | Expression |
---|---|
addex | ⊢ + ∈ V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-addf 7994 | . 2 ⊢ + :(ℂ × ℂ)⟶ℂ | |
2 | cnex 7996 | . . 3 ⊢ ℂ ∈ V | |
3 | 2, 2 | xpex 4774 | . 2 ⊢ (ℂ × ℂ) ∈ V |
4 | fex2 5422 | . 2 ⊢ (( + :(ℂ × ℂ)⟶ℂ ∧ (ℂ × ℂ) ∈ V ∧ ℂ ∈ V) → + ∈ V) | |
5 | 1, 3, 2, 4 | mp3an 1348 | 1 ⊢ + ∈ V |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2164 Vcvv 2760 × cxp 4657 ⟶wf 5250 ℂcc 7870 + caddc 7875 |
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-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 ax-un 4464 ax-cnex 7963 ax-addf 7994 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3157 df-in 3159 df-ss 3166 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-br 4030 df-opab 4091 df-xp 4665 df-rel 4666 df-cnv 4667 df-dm 4669 df-rn 4670 df-fun 5256 df-fn 5257 df-f 5258 |
This theorem is referenced by: cnfldstr 14049 cnfldadd 14052 |
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