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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 3312 | . 2 ⊢ {𝑥 ∈ 𝐴 ∣ 𝜑} ⊆ 𝐴 | |
| 2 | riotacl2 5986 | . 2 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ {𝑥 ∈ 𝐴 ∣ 𝜑}) | |
| 3 | 1, 2 | sselid 3225 | 1 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2202 ∃!wreu 2512 {crab 2514 ℩crio 5970 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-uni 3894 df-iota 5286 df-riota 5971 |
| This theorem is referenced by: riotaeqimp 5996 riotaprop 5997 riotass2 6000 riotass 6001 acexmidlemcase 6013 supclti 7197 caucvgsrlemcl 8009 caucvgsrlemgt1 8015 axcaucvglemcl 8115 subval 8371 subcl 8378 divvalap 8854 divclap 8858 lbcl 9126 divfnzn 9855 flqcl 10534 flapcl 10536 cjval 11423 cjth 11424 cjf 11425 oddpwdclemodd 12762 oddpwdclemdc 12763 oddpwdc 12764 qnumdencl 12777 qnumdenbi 12782 ismgmid 13478 grpinvf 13648 uspgredg2vlem 16090 usgredg2vlem1 16092 |
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