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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 36642 | . 2 ⊢ Bigcup :V–onto→V | |
| 2 | fofn 6796 | . 2 ⊢ ( Bigcup :V–onto→V → Bigcup Fn V) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ Bigcup Fn V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: Vcvv 3451 Fn wfn 6532 –onto→wfo 6535 Bigcup cbigcup 36576 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-symdif 4199 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-eprel 5551 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-fo 6543 df-fv 6545 df-1st 7999 df-2nd 8000 df-txp 36596 df-bigcup 36600 |
| This theorem is used by: fvbigcup 36644 |
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