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Mirrors > Home > MPE Home > Th. List > Mathboxes > setrec2lem2 | Structured version Visualization version Unicode version |
Description: Lemma for setrec2 42442. The functional part of is a function. (Contributed by Emmett Weisz, 6-Mar-2021.) (New usage is discouraged.) |
Ref | Expression |
---|---|
setrec2lem2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relres 5426 | . 2 | |
2 | fvex 6201 | . . . . 5 | |
3 | eqeq2 2633 | . . . . . . 7 | |
4 | 3 | imbi2d 330 | . . . . . 6 |
5 | 4 | albidv 1849 | . . . . 5 |
6 | 2, 5 | spcev 3300 | . . . 4 |
7 | vex 3203 | . . . . . 6 | |
8 | 7 | brres 5402 | . . . . 5 |
9 | abid 2610 | . . . . . . 7 | |
10 | tz6.12-1 6210 | . . . . . . 7 | |
11 | 9, 10 | sylan2b 492 | . . . . . 6 |
12 | 11 | eqcomd 2628 | . . . . 5 |
13 | 8, 12 | sylbi 207 | . . . 4 |
14 | 6, 13 | mpg 1724 | . . 3 |
15 | 14 | ax-gen 1722 | . 2 |
16 | nfcv 2764 | . . . 4 | |
17 | nfab1 2766 | . . . 4 | |
18 | 16, 17 | nfres 5398 | . . 3 |
19 | nfcv 2764 | . . . 4 | |
20 | nfeu1 2480 | . . . . 5 | |
21 | 20 | nfab 2769 | . . . 4 |
22 | 19, 21 | nfres 5398 | . . 3 |
23 | nfcv 2764 | . . 3 | |
24 | 18, 22, 23 | dffun3f 42429 | . 2 |
25 | 1, 15, 24 | mpbir2an 955 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wal 1481 wceq 1483 wex 1704 wcel 1990 weu 2470 cab 2608 class class class wbr 4653 cres 5116 wrel 5119 wfun 5882 cfv 5888 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-res 5126 df-iota 5851 df-fun 5890 df-fv 5896 |
This theorem is referenced by: setrec2 42442 |
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