| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > ralsn | Structured version Visualization version GIF version | ||
| Description: Convert a universal quantification restricted to a singleton to a substitution. (Contributed by NM, 27-Apr-2009.) |
| Ref | Expression |
|---|---|
| ralsn.1 | ⊢ 𝐴 ∈ V |
| ralsn.2 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| ralsn | ⊢ (∀𝑥 ∈ {𝐴}𝜑 ↔ 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ralsn.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | ralsn.2 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
| 3 | 2 | ralsng 4642 | . 2 ⊢ (𝐴 ∈ V → (∀𝑥 ∈ {𝐴}𝜑 ↔ 𝜓)) |
| 4 | 1, 3 | ax-mp 5 | 1 ⊢ (∀𝑥 ∈ {𝐴}𝜑 ↔ 𝜓) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2143 ∀wral 3079 Vcvv 3455 {csn 4590 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-tru 1573 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-ral 3080 df-v 3457 df-sn 4591 |
| This theorem is referenced by: xpord2indlem 8144 xpord3inddlem 8151 naddcllem 8663 naddasslem1 8682 naddasslem2 8683 elixpsn 8936 frfi 9246 dffi3 9392 ssttrcl 9685 ttrclss 9690 ttrclselem2 9696 fseqenlem1 10009 fpwwe2lem12 10628 hashbc 14492 hashf1lem1 14494 eqs1 14652 cshw1 14861 rpnnen2lem11 16281 drsdirfi 18362 0subg 19219 0subgALT 19639 efgsp1 19808 dprd2da 20115 lbsextlem4 21266 rnglidl0 21336 ply1coe 22439 mat0dimcrng 22608 txkgen 23790 xkoinjcn 23825 isufil2 24046 ust0 24358 prdsxmetlem 24506 prdsbl 24629 finiunmbl 25684 xrlimcnp 27111 chtub 27354 2sqlem10 27570 dchrisum0flb 27652 pntpbnd1 27728 conway 27950 etaslts 27964 lesrec 27970 bday1 27985 madebdaylemlrcut 28070 precsexlem9 28386 oncutlt 28435 oniso 28442 n0fincut 28526 bdayn0p1 28540 zcuts 28578 twocut 28594 halfcut 28629 addhalfcut 28630 pw2cut2 28633 1reno 28668 usgr1e 29573 nbgr2vtx1edg 29678 nbuhgr2vtx1edgb 29680 wlkl1loop 29965 crctcshwlkn0lem7 30143 2pthdlem1 30257 rusgrnumwwlkl1 30298 clwwlkccatlem 30318 clwwlkn2 30373 clwwlkel 30375 clwwlkwwlksb 30383 1wlkdlem4 30469 h1deoi 31879 selvply1rhmlemb 33887 vieta 33948 bnj149 35241 subfacp1lem5 35654 cvmlift2lem1 35772 cvmlift2lem12 35784 nmulrid 36675 lindsenlbs 38244 poimirlem28 38277 poimirlem32 38281 heibor1lem 38438 nadd1suc 44099 nregmodel 45706 usgrexmpl1lem 48763 usgrexmpl2lem 48768 isinito2lem 50253 setc1onsubc 50357 |
| Copyright terms: Public domain | W3C validator |