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| Mirrors > Home > ILE Home > Th. List > tfrcllemssrecs | Unicode version | ||
| Description: Lemma for tfrcl 6473. The union of functions acceptable for tfrcl 6473 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 4558 |
. . . . . 6
| |
| 4 | ssrexv 3266 |
. . . . . 6
| |
| 5 | 2, 3, 4 | 3syl 17 |
. . . . 5
|
| 6 | 5 | ss2abdv 3274 |
. . . 4
|
| 7 | 1, 6 | eqsstrid 3247 |
. . 3
|
| 8 | 7 | unissd 3888 |
. 2
|
| 9 | ffn 5445 |
. . . . . . 7
| |
| 10 | 9 | anim1i 340 |
. . . . . 6
|
| 11 | 10 | reximi 2605 |
. . . . 5
|
| 12 | 11 | ss2abi 3273 |
. . . 4
|
| 13 | 12 | unissi 3887 |
. . 3
|
| 14 | df-recs 6414 |
. . 3
| |
| 15 | 13, 14 | sseqtrri 3236 |
. 2
|
| 16 | 8, 15 | sstrdi 3213 |
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 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2189 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ral 2491 df-rex 2492 df-v 2778 df-in 3180 df-ss 3187 df-uni 3865 df-tr 4159 df-iord 4431 df-on 4433 df-f 5294 df-recs 6414 |
| This theorem is referenced by: tfrcllembfn 6466 tfrcllemubacc 6468 tfrcllemres 6471 |
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