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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 3309 | . 2 ⊢ {𝑥 ∈ 𝐴 ∣ 𝜑} ⊆ 𝐴 | |
| 2 | riotacl2 5975 | . 2 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ {𝑥 ∈ 𝐴 ∣ 𝜑}) | |
| 3 | 1, 2 | sselid 3222 | 1 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2200 ∃!wreu 2510 {crab 2512 ℩crio 5959 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2801 df-sbc 3029 df-un 3201 df-in 3203 df-ss 3210 df-sn 3672 df-pr 3673 df-uni 3889 df-iota 5278 df-riota 5960 |
| This theorem is referenced by: riotaeqimp 5985 riotaprop 5986 riotass2 5989 riotass 5990 acexmidlemcase 6002 supclti 7176 caucvgsrlemcl 7987 caucvgsrlemgt1 7993 axcaucvglemcl 8093 subval 8349 subcl 8356 divvalap 8832 divclap 8836 lbcl 9104 divfnzn 9828 flqcl 10505 flapcl 10507 cjval 11371 cjth 11372 cjf 11373 oddpwdclemodd 12709 oddpwdclemdc 12710 oddpwdc 12711 qnumdencl 12724 qnumdenbi 12729 ismgmid 13425 grpinvf 13595 uspgredg2vlem 16033 usgredg2vlem1 16035 |
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