| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > tfrcllemssrecs | Unicode version | ||
| Description: Lemma for tfrcl 6573. The union of functions acceptable for tfrcl 6573 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 4596 |
. . . . . 6
| |
| 4 | ssrexv 3293 |
. . . . . 6
| |
| 5 | 2, 3, 4 | 3syl 17 |
. . . . 5
|
| 6 | 5 | ss2abdv 3301 |
. . . 4
|
| 7 | 1, 6 | eqsstrid 3274 |
. . 3
|
| 8 | 7 | unissd 3922 |
. 2
|
| 9 | ffn 5489 |
. . . . . . 7
| |
| 10 | 9 | anim1i 340 |
. . . . . 6
|
| 11 | 10 | reximi 2630 |
. . . . 5
|
| 12 | 11 | ss2abi 3300 |
. . . 4
|
| 13 | 12 | unissi 3921 |
. . 3
|
| 14 | df-recs 6514 |
. . 3
| |
| 15 | 13, 14 | sseqtrri 3263 |
. 2
|
| 16 | 8, 15 | sstrdi 3240 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-in 3207 df-ss 3214 df-uni 3899 df-tr 4193 df-iord 4469 df-on 4471 df-f 5337 df-recs 6514 |
| This theorem is referenced by: tfrcllembfn 6566 tfrcllemubacc 6568 tfrcllemres 6571 |
| Copyright terms: Public domain | W3C validator |