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| Mirrors > Home > MPE Home > Th. List > Mathboxes > fnbigcup | Structured version Visualization version GIF version | ||
| Description: Bigcup is a function over the universal class. (Contributed by Scott Fenton, 11-Apr-2012.) |
| Ref | Expression |
|---|---|
| fnbigcup | ⊢ Bigcup Fn V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fobigcup 35934 | . 2 ⊢ Bigcup :V–onto→V | |
| 2 | fofn 6732 | . 2 ⊢ ( Bigcup :V–onto→V → Bigcup Fn V) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ Bigcup Fn V |
| Colors of variables: wff setvar class |
| Syntax hints: Vcvv 3436 Fn wfn 6471 –onto→wfo 6474 Bigcup cbigcup 35868 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5229 ax-nul 5239 ax-pow 5298 ax-pr 5365 ax-un 7663 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-rab 3396 df-v 3438 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-symdif 4198 df-nul 4279 df-if 4471 df-pw 4547 df-sn 4572 df-pr 4574 df-op 4578 df-uni 4855 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5506 df-eprel 5511 df-xp 5617 df-rel 5618 df-cnv 5619 df-co 5620 df-dm 5621 df-rn 5622 df-res 5623 df-iota 6432 df-fun 6478 df-fn 6479 df-f 6480 df-fo 6482 df-fv 6484 df-1st 7916 df-2nd 7917 df-txp 35888 df-bigcup 35892 |
| This theorem is referenced by: fvbigcup 35936 |
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