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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 6859 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6904 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
| 3 | eqcom 2744 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
| 4 | 3 | rexbii 3085 | . . 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 5359 | 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 1542 ∈ wcel 2114 ∀wral 3052 ∃wrex 3062 Vcvv 3442 ran crn 5635 Fn wfn 6497 ‘cfv 6502 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5245 ax-nul 5255 ax-pr 5381 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5529 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-iota 6458 df-fun 6504 df-fn 6505 df-fv 6510 |
| This theorem is referenced by: ralrnmptw 7050 ralrnmpt 7052 cbvfo 7247 isoselem 7299 indexfi 9274 ordtypelem9 9445 ordtypelem10 9446 wemapwe 9620 numacn 9973 acndom 9975 rpnnen1lem3 12906 fsequb2 13913 limsuple 15415 limsupval2 15417 climsup 15607 ruclem11 16179 ruclem12 16180 prmreclem6 16863 imasaddfnlem 17463 imasvscafn 17472 cycsubgcl 19152 ghmrn 19175 ghmnsgima 19186 pgpssslw 19560 gexex 19799 dprdfcntz 19963 znf1o 21523 frlmlbs 21769 lindfrn 21793 ptcnplem 23582 kqt0lem 23697 isr0 23698 regr1lem2 23701 uzrest 23858 tmdgsum2 24057 imasf1oxmet 24336 imasf1omet 24337 bndth 24930 evth 24931 ovolficcss 25443 ovollb2lem 25462 ovolunlem1 25471 ovoliunlem1 25476 ovoliunlem2 25477 ovoliun2 25480 ovolscalem1 25487 ovolicc1 25490 voliunlem2 25525 voliunlem3 25526 ioombl1lem4 25535 uniioovol 25553 uniioombllem2 25557 uniioombllem3 25559 uniioombllem6 25562 volsup2 25579 vitalilem3 25584 mbfsup 25638 mbfinf 25639 mbflimsup 25640 itg1ge0 25660 itg1mulc 25678 itg1climres 25688 mbfi1fseqlem4 25692 itg2seq 25716 itg2monolem1 25724 itg2mono 25727 itg2i1fseq2 25730 itg2gt0 25734 itg2cnlem1 25735 itg2cn 25737 limciun 25868 plycpn 26270 hmopidmchi 32245 hmopidmpji 32246 rge0scvg 34133 mclsax 35791 mblfinlem2 37938 ismtyhmeolem 38084 nacsfix 43098 fnwe2lem2 43437 gneispace 44519 climinf 45995 liminfval2 46155 |
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