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Mirrors > Home > MPE Home > Th. List > zfregclOLD | Structured version Visualization version Unicode version |
Description: Obsolete version of zfregcl 8499 as of 28-Apr-2021. (Contributed by NM, 5-Aug-1994.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
zfregclOLD.1 |
Ref | Expression |
---|---|
zfregclOLD |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zfregclOLD.1 | . 2 | |
2 | eleq2 2690 | . . . 4 | |
3 | 2 | exbidv 1850 | . . 3 |
4 | eleq2 2690 | . . . . . 6 | |
5 | 4 | notbid 308 | . . . . 5 |
6 | 5 | ralbidv 2986 | . . . 4 |
7 | 6 | rexeqbi1dv 3147 | . . 3 |
8 | 3, 7 | imbi12d 334 | . 2 |
9 | nfre1 3005 | . . 3 | |
10 | axreg2 8498 | . . . 4 | |
11 | df-ral 2917 | . . . . . 6 | |
12 | 11 | rexbii 3041 | . . . . 5 |
13 | df-rex 2918 | . . . . 5 | |
14 | 12, 13 | bitr2i 265 | . . . 4 |
15 | 10, 14 | sylib 208 | . . 3 |
16 | 9, 15 | exlimi 2086 | . 2 |
17 | 1, 8, 16 | vtocl 3259 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wa 384 wal 1481 wceq 1483 wex 1704 wcel 1990 wral 2912 wrex 2913 cvv 3200 |
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-ext 2602 ax-reg 8497 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-v 3202 |
This theorem is referenced by: zfregOLD 8502 zfreg2OLD 8503 |
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