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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 3333 | . 2 ⊢ {𝑥 ∈ 𝐴 ∣ 𝜑} ⊆ 𝐴 | |
| 2 | riotacl2 6056 | . 2 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ {𝑥 ∈ 𝐴 ∣ 𝜑}) | |
| 3 | 1, 2 | sselid 3246 | 1 ⊢ (∃!𝑥 ∈ 𝐴 𝜑 → (℩𝑥 ∈ 𝐴 𝜑) ∈ 𝐴) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 ∃!wreu 2530 {crab 2532 ℩crio 6040 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-sn 3715 df-pr 3716 df-uni 3936 df-iota 5340 df-riota 6041 |
| This theorem is used by: riotaeqimp 6066 riotaprop 6067 riotass2 6070 riotass 6071 acexmidlemcase 6083 supclti 7344 caucvgsrlemcl 8162 caucvgsrlemgt1 8168 axcaucvglemcl 8268 subval 8525 subcl 8532 divvalap 9012 divclap 9016 lbcl 9284 divfnzn 10037 flqcl 10725 flapclz 10727 cjval 11632 cjth 11633 cjf 11634 nnmaxpwlemnfac 12976 nnmaxpwlemparts 12977 nnmaxpw 12978 qnumdencl 12992 qnumdenbi 12997 ismgmid 13756 grpinvf 13911 uspgredg2vlem 16666 usgredg2vlem1 16668 |
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