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| Mirrors > Home > ILE Home > Th. List > df-tp | Unicode version | ||
| Description: Define unordered triple of classes. Definition of [Enderton] p. 19. (Contributed by NM, 9-Apr-1994.) | 
| Ref | Expression | 
|---|---|
| df-tp | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | cA | 
. . 3
 | |
| 2 | cB | 
. . 3
 | |
| 3 | cC | 
. . 3
 | |
| 4 | 1, 2, 3 | ctp 3624 | 
. 2
 | 
| 5 | 1, 2 | cpr 3623 | 
. . 3
 | 
| 6 | 3 | csn 3622 | 
. . 3
 | 
| 7 | 5, 6 | cun 3155 | 
. 2
 | 
| 8 | 4, 7 | wceq 1364 | 
1
 | 
| Colors of variables: wff set class | 
| This definition is referenced by: eltpg 3667 raltpg 3675 rextpg 3676 tpeq1 3708 tpeq2 3709 tpeq3 3710 tpcoma 3716 tpass 3718 qdass 3719 tpidm12 3721 diftpsn3 3763 snsstp1 3772 snsstp2 3773 snsstp3 3774 prsstp12 3775 tpss 3788 tpssi 3789 ord3ex 4223 tpexg 4479 dmtpop 5145 funtpg 5309 funtp 5311 fntpg 5314 ftpg 5746 fvtp1g 5770 tpfidisj 6990 tpfidceq 6991 fztp 10153 sumtp 11579 strle3g 12786 lsptpcl 13950 perfectlem2 15236 bdctp 15518 | 
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