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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 6884 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6929 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
| 3 | eqcom 2771 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
| 4 | 3 | rexbii 3111 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦)) |
| 5 | 2, 4 | bitrdi 289 | . 2 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦))) |
| 6 | rexrn.1 | . . 3 ⊢ (𝑥 = (𝐹‘𝑦) → (𝜑 ↔ 𝜓)) | |
| 7 | 6 | adantl 485 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑥 = (𝐹‘𝑦)) → (𝜑 ↔ 𝜓)) |
| 8 | 1, 5, 7 | ralxfr2d 5369 | 1 ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 399 = wceq 1562 ∈ wcel 2144 ∀wral 3078 ∃wrex 3088 Vcvv 3456 ran crn 5650 Fn wfn 6518 ‘cfv 6523 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2214 ax-ext 2736 ax-sep 5248 ax-nul 5258 ax-pr 5392 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-nf 1806 df-sb 2093 df-mo 2568 df-eu 2598 df-clab 2743 df-cleq 2756 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3079 df-rex 3089 df-rab 3417 df-v 3458 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5103 df-opab 5165 df-mpt 5184 df-id 5544 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-rn 5660 df-iota 6479 df-fun 6525 df-fn 6526 df-fv 6531 |
| This theorem is referenced by: ralrnmptw 7077 ralrnmpt 7079 cbvfo 7275 isoselem 7327 indexfi 9305 ordtypelem9 9476 ordtypelem10 9477 wemapwe 9654 numacn 10007 acndom 10009 rpnnen1lem3 12982 fsequb2 13991 limsuple 15507 limsupval2 15509 climsup 15699 ruclem11 16274 ruclem12 16275 prmreclem6 16959 imasaddfnlem 17560 imasvscafn 17569 cycsubgcl 19249 ghmrn 19271 ghmnsgima 19282 pgpssslw 19656 gexex 19895 dprdfcntz 20059 znf1o 21605 frlmlbs 21851 lindfrn 21875 ptcnplem 23683 kqt0lem 23798 isr0 23799 regr1lem2 23802 uzrest 23959 tmdgsum2 24158 imasf1oxmet 24437 imasf1omet 24438 bndth 25022 evth 25023 ovolficcss 25533 ovollb2lem 25552 ovolunlem1 25561 ovoliunlem1 25566 ovoliunlem2 25567 ovoliun2 25570 ovolscalem1 25577 ovolicc1 25580 voliunlem2 25615 voliunlem3 25616 ioombl1lem4 25625 uniioovol 25643 uniioombllem2 25647 uniioombllem3 25649 uniioombllem6 25652 volsup2 25669 vitalilem3 25674 mbfsup 25728 mbfinf 25729 mbflimsup 25730 itg1ge0 25750 itg1mulc 25768 itg1climres 25778 mbfi1fseqlem4 25782 itg2seq 25806 itg2monolem1 25814 itg2mono 25817 itg2i1fseq2 25820 itg2gt0 25824 itg2cnlem1 25825 itg2cn 25827 limciun 25958 plycpn 26355 hmopidmchi 32356 hmopidmpji 32357 rge0scvg 34248 mclsax 35924 mblfinlem2 38162 ismtyhmeolem 38308 nacsfix 43298 fnwe2lem2 43633 gneispace 44715 climinf 46187 liminfval2 46347 |
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