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| Mirrors > Home > ILE Home > Th. List > tfrcllemssrecs | Unicode version | ||
| Description: Lemma for tfrcl 6422. The union of functions acceptable for tfrcl 6422 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 4528 |
. . . . . 6
| |
| 4 | ssrexv 3248 |
. . . . . 6
| |
| 5 | 2, 3, 4 | 3syl 17 |
. . . . 5
|
| 6 | 5 | ss2abdv 3256 |
. . . 4
|
| 7 | 1, 6 | eqsstrid 3229 |
. . 3
|
| 8 | 7 | unissd 3863 |
. 2
|
| 9 | ffn 5407 |
. . . . . . 7
| |
| 10 | 9 | anim1i 340 |
. . . . . 6
|
| 11 | 10 | reximi 2594 |
. . . . 5
|
| 12 | 11 | ss2abi 3255 |
. . . 4
|
| 13 | 12 | unissi 3862 |
. . 3
|
| 14 | df-recs 6363 |
. . 3
| |
| 15 | 13, 14 | sseqtrri 3218 |
. 2
|
| 16 | 8, 15 | sstrdi 3195 |
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 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-v 2765 df-in 3163 df-ss 3170 df-uni 3840 df-tr 4132 df-iord 4401 df-on 4403 df-f 5262 df-recs 6363 |
| This theorem is referenced by: tfrcllembfn 6415 tfrcllemubacc 6417 tfrcllemres 6420 |
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