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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 6847 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6892 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
| 3 | eqcom 2741 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
| 4 | 3 | rexbii 3081 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦)) |
| 5 | 2, 4 | bitrdi 287 | . 2 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦))) |
| 6 | rexrn.1 | . . 3 ⊢ (𝑥 = (𝐹‘𝑦) → (𝜑 ↔ 𝜓)) | |
| 7 | 6 | adantl 481 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑥 = (𝐹‘𝑦)) → (𝜑 ↔ 𝜓)) |
| 8 | 1, 5, 7 | ralxfr2d 5353 | 1 ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1541 ∈ wcel 2113 ∀wral 3049 ∃wrex 3058 Vcvv 3438 ran crn 5623 Fn wfn 6485 ‘cfv 6490 |
| 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 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2706 ax-sep 5239 ax-nul 5249 ax-pr 5375 |
| 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 2537 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2809 df-nfc 2883 df-ne 2931 df-ral 3050 df-rex 3059 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-br 5097 df-opab 5159 df-mpt 5178 df-id 5517 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-iota 6446 df-fun 6492 df-fn 6493 df-fv 6498 |
| This theorem is referenced by: ralrnmptw 7037 ralrnmpt 7039 cbvfo 7233 isoselem 7285 indexfi 9258 ordtypelem9 9429 ordtypelem10 9430 wemapwe 9604 numacn 9957 acndom 9959 rpnnen1lem3 12890 fsequb2 13897 limsuple 15399 limsupval2 15401 climsup 15591 ruclem11 16163 ruclem12 16164 prmreclem6 16847 imasaddfnlem 17447 imasvscafn 17456 cycsubgcl 19133 ghmrn 19156 ghmnsgima 19167 pgpssslw 19541 gexex 19780 dprdfcntz 19944 znf1o 21504 frlmlbs 21750 lindfrn 21774 ptcnplem 23563 kqt0lem 23678 isr0 23679 regr1lem2 23682 uzrest 23839 tmdgsum2 24038 imasf1oxmet 24317 imasf1omet 24318 bndth 24911 evth 24912 ovolficcss 25424 ovollb2lem 25443 ovolunlem1 25452 ovoliunlem1 25457 ovoliunlem2 25458 ovoliun2 25461 ovolscalem1 25468 ovolicc1 25471 voliunlem2 25506 voliunlem3 25507 ioombl1lem4 25516 uniioovol 25534 uniioombllem2 25538 uniioombllem3 25540 uniioombllem6 25543 volsup2 25560 vitalilem3 25565 mbfsup 25619 mbfinf 25620 mbflimsup 25621 itg1ge0 25641 itg1mulc 25659 itg1climres 25669 mbfi1fseqlem4 25673 itg2seq 25697 itg2monolem1 25705 itg2mono 25708 itg2i1fseq2 25711 itg2gt0 25715 itg2cnlem1 25716 itg2cn 25718 limciun 25849 plycpn 26251 hmopidmchi 32175 hmopidmpji 32176 rge0scvg 34055 mclsax 35712 mblfinlem2 37798 ismtyhmeolem 37944 nacsfix 42896 fnwe2lem2 43235 gneispace 44317 climinf 45794 liminfval2 45954 |
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