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| Mirrors > Home > ILE Home > Th. List > tfrcllemssrecs | Unicode version | ||
| Description: Lemma for tfrcl 6529. The union of functions acceptable for tfrcl 6529 is a subset of recs. (Contributed by Jim Kingdon, 25-Mar-2022.) |
| Ref | Expression |
|---|---|
| tfrcllemssrecs.1 |
|
| tfrcllemssrecs.x |
|
| Ref | Expression |
|---|---|
| tfrcllemssrecs |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tfrcllemssrecs.1 |
. . . 4
| |
| 2 | tfrcllemssrecs.x |
. . . . . 6
| |
| 3 | ordsson 4590 |
. . . . . 6
| |
| 4 | ssrexv 3292 |
. . . . . 6
| |
| 5 | 2, 3, 4 | 3syl 17 |
. . . . 5
|
| 6 | 5 | ss2abdv 3300 |
. . . 4
|
| 7 | 1, 6 | eqsstrid 3273 |
. . 3
|
| 8 | 7 | unissd 3917 |
. 2
|
| 9 | ffn 5482 |
. . . . . . 7
| |
| 10 | 9 | anim1i 340 |
. . . . . 6
|
| 11 | 10 | reximi 2629 |
. . . . 5
|
| 12 | 11 | ss2abi 3299 |
. . . 4
|
| 13 | 12 | unissi 3916 |
. . 3
|
| 14 | df-recs 6470 |
. . 3
| |
| 15 | 13, 14 | sseqtrri 3262 |
. 2
|
| 16 | 8, 15 | sstrdi 3239 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-in 3206 df-ss 3213 df-uni 3894 df-tr 4188 df-iord 4463 df-on 4465 df-f 5330 df-recs 6470 |
| This theorem is referenced by: tfrcllembfn 6522 tfrcllemubacc 6524 tfrcllemres 6527 |
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