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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 6855 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6900 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
| 3 | eqcom 2743 | . . . 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 5352 | 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 3051 ∃wrex 3061 Vcvv 3429 ran crn 5632 Fn wfn 6493 ‘cfv 6498 |
| 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 2708 ax-sep 5231 ax-nul 5241 ax-pr 5375 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-iota 6454 df-fun 6500 df-fn 6501 df-fv 6506 |
| This theorem is referenced by: ralrnmptw 7046 ralrnmpt 7048 cbvfo 7244 isoselem 7296 indexfi 9270 ordtypelem9 9441 ordtypelem10 9442 wemapwe 9618 numacn 9971 acndom 9973 rpnnen1lem3 12929 fsequb2 13938 limsuple 15440 limsupval2 15442 climsup 15632 ruclem11 16207 ruclem12 16208 prmreclem6 16892 imasaddfnlem 17492 imasvscafn 17501 cycsubgcl 19181 ghmrn 19204 ghmnsgima 19215 pgpssslw 19589 gexex 19828 dprdfcntz 19992 znf1o 21531 frlmlbs 21777 lindfrn 21801 ptcnplem 23586 kqt0lem 23701 isr0 23702 regr1lem2 23705 uzrest 23862 tmdgsum2 24061 imasf1oxmet 24340 imasf1omet 24341 bndth 24925 evth 24926 ovolficcss 25436 ovollb2lem 25455 ovolunlem1 25464 ovoliunlem1 25469 ovoliunlem2 25470 ovoliun2 25473 ovolscalem1 25480 ovolicc1 25483 voliunlem2 25518 voliunlem3 25519 ioombl1lem4 25528 uniioovol 25546 uniioombllem2 25550 uniioombllem3 25552 uniioombllem6 25555 volsup2 25572 vitalilem3 25577 mbfsup 25631 mbfinf 25632 mbflimsup 25633 itg1ge0 25653 itg1mulc 25671 itg1climres 25681 mbfi1fseqlem4 25685 itg2seq 25709 itg2monolem1 25717 itg2mono 25720 itg2i1fseq2 25723 itg2gt0 25727 itg2cnlem1 25728 itg2cn 25730 limciun 25861 plycpn 26255 hmopidmchi 32222 hmopidmpji 32223 rge0scvg 34093 mclsax 35751 mblfinlem2 37979 ismtyhmeolem 38125 nacsfix 43144 fnwe2lem2 43479 gneispace 44561 climinf 46036 liminfval2 46196 |
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