| 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 4633 | . 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 208 = wceq 1559 ∈ wcel 2141 ∀wral 3075 Vcvv 3453 {csn 4581 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-tru 1562 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3076 df-v 3455 df-sn 4582 |
| This theorem is referenced by: xpord2indlem 8122 xpord3inddlem 8129 naddcllem 8641 naddasslem1 8660 naddasslem2 8661 elixpsn 8915 frfi 9225 dffi3 9374 ssttrcl 9667 ttrclss 9672 ttrclselem2 9678 fseqenlem1 9977 fpwwe2lem12 10597 hashbc 14463 hashf1lem1 14465 eqs1 14623 cshw1 14832 rpnnen2lem11 16239 drsdirfi 18320 0subg 19176 0subgALT 19591 efgsp1 19760 dprd2da 20067 lbsextlem4 21211 rnglidl0 21279 ply1coe 22341 mat0dimcrng 22510 txkgen 23692 xkoinjcn 23727 isufil2 23948 ust0 24260 prdsxmetlem 24408 prdsbl 24531 finiunmbl 25586 xrlimcnp 27010 chtub 27253 2sqlem10 27469 dchrisum0flb 27551 pntpbnd1 27627 conway 27849 etaslts 27863 lesrec 27869 bday1 27884 madebdaylemlrcut 27969 precsexlem9 28285 oncutlt 28334 oniso 28341 n0fincut 28425 bdayn0p1 28439 zcuts 28477 twocut 28493 halfcut 28528 addhalfcut 28529 pw2cut2 28532 1reno 28567 usgr1e 29392 nbgr2vtx1edg 29497 nbuhgr2vtx1edgb 29499 wlkl1loop 29784 crctcshwlkn0lem7 29962 2pthdlem1 30076 rusgrnumwwlkl1 30117 clwwlkccatlem 30137 clwwlkn2 30192 clwwlkel 30194 clwwlkwwlksb 30202 1wlkdlem4 30288 h1deoi 31698 selvply1rhmlemb 33777 vieta 33838 bnj149 35134 subfacp1lem5 35498 cvmlift2lem1 35616 cvmlift2lem12 35628 lindsenlbs 38078 poimirlem28 38111 poimirlem32 38115 heibor1lem 38272 nadd1suc 43933 nregmodel 45557 usgrexmpl1lem 48607 usgrexmpl2lem 48612 isinito2lem 50083 setc1onsubc 50187 |
| Copyright terms: Public domain | W3C validator |