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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 6846 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6891 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
| 3 | eqcom 2748 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
| 4 | 3 | rexbii 3088 | . . 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 483 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑥 = (𝐹‘𝑦)) → (𝜑 ↔ 𝜓)) |
| 8 | 1, 5, 7 | ralxfr2d 5342 | 1 ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 397 = wceq 1548 ∈ wcel 2121 ∀wral 3055 ∃wrex 3065 Vcvv 3433 ran crn 5622 Fn wfn 6484 ‘cfv 6489 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-sep 5221 ax-nul 5231 ax-pr 5365 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-ral 3056 df-rex 3066 df-rab 3394 df-v 3435 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-nul 4265 df-if 4458 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-br 5076 df-opab 5138 df-mpt 5157 df-id 5516 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-iota 6445 df-fun 6491 df-fn 6492 df-fv 6497 |
| This theorem is referenced by: ralrnmptw 7039 ralrnmpt 7041 cbvfo 7237 isoselem 7289 indexfi 9264 ordtypelem9 9435 ordtypelem10 9436 wemapwe 9613 numacn 9966 acndom 9968 rpnnen1lem3 12924 fsequb2 13933 limsuple 15435 limsupval2 15437 climsup 15627 ruclem11 16202 ruclem12 16203 prmreclem6 16887 imasaddfnlem 17487 imasvscafn 17496 cycsubgcl 19176 ghmrn 19199 ghmnsgima 19210 pgpssslw 19584 gexex 19823 dprdfcntz 19987 znf1o 21530 frlmlbs 21776 lindfrn 21800 ptcnplem 23608 kqt0lem 23723 isr0 23724 regr1lem2 23727 uzrest 23884 tmdgsum2 24083 imasf1oxmet 24362 imasf1omet 24363 bndth 24947 evth 24948 ovolficcss 25458 ovollb2lem 25477 ovolunlem1 25486 ovoliunlem1 25491 ovoliunlem2 25492 ovoliun2 25495 ovolscalem1 25502 ovolicc1 25505 voliunlem2 25540 voliunlem3 25541 ioombl1lem4 25550 uniioovol 25568 uniioombllem2 25572 uniioombllem3 25574 uniioombllem6 25577 volsup2 25594 vitalilem3 25599 mbfsup 25653 mbfinf 25654 mbflimsup 25655 itg1ge0 25675 itg1mulc 25693 itg1climres 25703 mbfi1fseqlem4 25707 itg2seq 25731 itg2monolem1 25739 itg2mono 25742 itg2i1fseq2 25745 itg2gt0 25749 itg2cnlem1 25750 itg2cn 25752 limciun 25883 plycpn 26277 hmopidmchi 32244 hmopidmpji 32245 rge0scvg 34145 mclsax 35812 mblfinlem2 38040 ismtyhmeolem 38186 nacsfix 43176 fnwe2lem2 43511 gneispace 44593 climinf 46065 liminfval2 46225 |
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