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| Mirrors > Home > ILE Home > Th. List > tfrcllemssrecs | Unicode version | ||
| Description: Lemma for tfrcl 6525. The union of functions acceptable for tfrcl 6525 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 4588 |
. . . . . 6
| |
| 4 | ssrexv 3290 |
. . . . . 6
| |
| 5 | 2, 3, 4 | 3syl 17 |
. . . . 5
|
| 6 | 5 | ss2abdv 3298 |
. . . 4
|
| 7 | 1, 6 | eqsstrid 3271 |
. . 3
|
| 8 | 7 | unissd 3915 |
. 2
|
| 9 | ffn 5479 |
. . . . . . 7
| |
| 10 | 9 | anim1i 340 |
. . . . . 6
|
| 11 | 10 | reximi 2627 |
. . . . 5
|
| 12 | 11 | ss2abi 3297 |
. . . 4
|
| 13 | 12 | unissi 3914 |
. . 3
|
| 14 | df-recs 6466 |
. . 3
| |
| 15 | 13, 14 | sseqtrri 3260 |
. 2
|
| 16 | 8, 15 | sstrdi 3237 |
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 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-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2802 df-in 3204 df-ss 3211 df-uni 3892 df-tr 4186 df-iord 4461 df-on 4463 df-f 5328 df-recs 6466 |
| This theorem is referenced by: tfrcllembfn 6518 tfrcllemubacc 6520 tfrcllemres 6523 |
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