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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 6850 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6895 | . . 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 3084 | . . 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 5356 | 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 3061 Vcvv 3441 ran crn 5626 Fn wfn 6488 ‘cfv 6493 |
| 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 5242 ax-nul 5252 ax-pr 5378 |
| 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 3062 df-rab 3401 df-v 3443 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4287 df-if 4481 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-iota 6449 df-fun 6495 df-fn 6496 df-fv 6501 |
| This theorem is referenced by: ralrnmptw 7041 ralrnmpt 7043 cbvfo 7237 isoselem 7289 indexfi 9264 ordtypelem9 9435 ordtypelem10 9436 wemapwe 9610 numacn 9963 acndom 9965 rpnnen1lem3 12896 fsequb2 13903 limsuple 15405 limsupval2 15407 climsup 15597 ruclem11 16169 ruclem12 16170 prmreclem6 16853 imasaddfnlem 17453 imasvscafn 17462 cycsubgcl 19139 ghmrn 19162 ghmnsgima 19173 pgpssslw 19547 gexex 19786 dprdfcntz 19950 znf1o 21510 frlmlbs 21756 lindfrn 21780 ptcnplem 23569 kqt0lem 23684 isr0 23685 regr1lem2 23688 uzrest 23845 tmdgsum2 24044 imasf1oxmet 24323 imasf1omet 24324 bndth 24917 evth 24918 ovolficcss 25430 ovollb2lem 25449 ovolunlem1 25458 ovoliunlem1 25463 ovoliunlem2 25464 ovoliun2 25467 ovolscalem1 25474 ovolicc1 25477 voliunlem2 25512 voliunlem3 25513 ioombl1lem4 25522 uniioovol 25540 uniioombllem2 25544 uniioombllem3 25546 uniioombllem6 25549 volsup2 25566 vitalilem3 25571 mbfsup 25625 mbfinf 25626 mbflimsup 25627 itg1ge0 25647 itg1mulc 25665 itg1climres 25675 mbfi1fseqlem4 25679 itg2seq 25703 itg2monolem1 25711 itg2mono 25714 itg2i1fseq2 25717 itg2gt0 25721 itg2cnlem1 25722 itg2cn 25724 limciun 25855 plycpn 26257 hmopidmchi 32230 hmopidmpji 32231 rge0scvg 34108 mclsax 35765 mblfinlem2 37861 ismtyhmeolem 38007 nacsfix 43021 fnwe2lem2 43360 gneispace 44442 climinf 45919 liminfval2 46079 |
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