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| Mirrors > Home > MPE Home > Th. List > ralrn | Structured version Visualization version GIF version | ||
| Description: Restricted universal quantification over the range of a function. (Contributed by Mario Carneiro, 24-Dec-2013.) (Revised by Mario Carneiro, 20-Aug-2014.) |
| Ref | Expression |
|---|---|
| rexrn.1 | ⊢ (𝑥 = (𝐹‘𝑦) → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| ralrn | ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fvexd 6897 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6942 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
| 3 | eqcom 2776 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
| 4 | 3 | rexbii 3118 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦)) |
| 5 | 2, 4 | bitrdi 290 | . 2 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦))) |
| 6 | rexrn.1 | . . 3 ⊢ (𝑥 = (𝐹‘𝑦) → (𝜑 ↔ 𝜓)) | |
| 7 | 6 | adantl 486 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑥 = (𝐹‘𝑦)) → (𝜑 ↔ 𝜓)) |
| 8 | 1, 5, 7 | ralxfr2d 5382 | 1 ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1567 ∈ wcel 2149 ∀wral 3085 ∃wrex 3095 Vcvv 3463 ran crn 5663 Fn wfn 6532 ‘cfv 6537 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pr 5405 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-iota 6493 df-fun 6539 df-fn 6540 df-fv 6545 |
| This theorem is referenced by: ralrnmptw 7090 ralrnmpt 7092 cbvfo 7288 isoselem 7340 indexfi 9317 ordtypelem9 9488 ordtypelem10 9489 wemapwe 9666 numacn 10033 acndom 10035 rpnnen1lem3 13003 fsequb2 14012 limsuple 15529 limsupval2 15531 climsup 15721 ruclem11 16296 ruclem12 16297 prmreclem6 16981 imasaddfnlem 17582 imasvscafn 17591 cycsubgcl 19277 ghmrn 19299 ghmnsgima 19310 pgpssslw 19684 gexex 19923 dprdfcntz 20087 znf1o 21670 frlmlbs 21916 lindfrn 21940 ptcnplem 23747 kqt0lem 23862 isr0 23863 regr1lem2 23866 uzrest 24023 tmdgsum2 24222 imasf1oxmet 24501 imasf1omet 24502 bndth 25086 evth 25087 ovolficcss 25597 ovollb2lem 25616 ovolunlem1 25625 ovoliunlem1 25630 ovoliunlem2 25631 ovoliun2 25634 ovolscalem1 25641 ovolicc1 25644 voliunlem2 25679 voliunlem3 25680 ioombl1lem4 25689 uniioovol 25707 uniioombllem2 25711 uniioombllem3 25713 uniioombllem6 25716 volsup2 25733 vitalilem3 25738 mbfsup 25792 mbfinf 25793 mbflimsup 25794 itg1ge0 25814 itg1mulc 25832 itg1climres 25842 mbfi1fseqlem4 25846 itg2seq 25870 itg2monolem1 25878 itg2mono 25881 itg2i1fseq2 25884 itg2gt0 25888 itg2cnlem1 25889 itg2cn 25891 limciun 26022 plycpn 26419 hmopidmchi 32444 hmopidmpji 32445 rge0scvg 34284 mclsax 35994 mblfinlem2 38231 ismtyhmeolem 38377 nacsfix 43369 fnwe2lem2 43704 gneispace 44786 climinf 46248 liminfval2 46408 |
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