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| Mirrors > Home > ILE Home > Th. List > riotacl | GIF version | ||
| Description: Closure of restricted iota. (Contributed by NM, 21-Aug-2011.) |
| Ref | Expression |
|---|---|
| riotacl | ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssrab2 3313 | . 2 ⊢ {𝑥 ∈ 𝐴 ∣ 𝜑} ⊆ 𝐴 | |
| 2 | riotacl2 5996 | . 2 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ {𝑥 ∈ 𝐴 ∣ 𝜑}) | |
| 3 | 1, 2 | sselid 3226 | 1 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2202 ∃!wreu 2513 {crab 2515 ℩crio 5980 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1811 df-eu 2082 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-rex 2517 df-reu 2518 df-rab 2520 df-v 2805 df-sbc 3033 df-un 3205 df-in 3207 df-ss 3214 df-sn 3679 df-pr 3680 df-uni 3899 df-iota 5293 df-riota 5981 |
| This theorem is referenced by: riotaeqimp 6006 riotaprop 6007 riotass2 6010 riotass 6011 acexmidlemcase 6023 supclti 7240 caucvgsrlemcl 8052 caucvgsrlemgt1 8058 axcaucvglemcl 8158 subval 8413 subcl 8420 divvalap 8896 divclap 8900 lbcl 9168 divfnzn 9899 flqcl 10579 flapcl 10581 cjval 11468 cjth 11469 cjf 11470 oddpwdclemodd 12807 oddpwdclemdc 12808 oddpwdc 12809 qnumdencl 12822 qnumdenbi 12827 ismgmid 13523 grpinvf 13693 uspgredg2vlem 16144 usgredg2vlem1 16146 |
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