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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 3310 | . 2 ⊢ {𝑥 ∈ 𝐴 ∣ 𝜑} ⊆ 𝐴 | |
| 2 | riotacl2 5981 | . 2 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ {𝑥 ∈ 𝐴 ∣ 𝜑}) | |
| 3 | 1, 2 | sselid 3223 | 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 5965 |
| 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 2802 df-sbc 3030 df-un 3202 df-in 3204 df-ss 3211 df-sn 3673 df-pr 3674 df-uni 3892 df-iota 5284 df-riota 5966 |
| This theorem is referenced by: riotaeqimp 5991 riotaprop 5992 riotass2 5995 riotass 5996 acexmidlemcase 6008 supclti 7188 caucvgsrlemcl 7999 caucvgsrlemgt1 8005 axcaucvglemcl 8105 subval 8361 subcl 8368 divvalap 8844 divclap 8848 lbcl 9116 divfnzn 9845 flqcl 10523 flapcl 10525 cjval 11396 cjth 11397 cjf 11398 oddpwdclemodd 12734 oddpwdclemdc 12735 oddpwdc 12736 qnumdencl 12749 qnumdenbi 12754 ismgmid 13450 grpinvf 13620 uspgredg2vlem 16059 usgredg2vlem1 16061 |
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