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Mirrors > Home > MPE Home > Th. List > snsstp1 | Structured version Visualization version Unicode version |
Description: A singleton is a subset of an unordered triple containing its member. (Contributed by NM, 9-Oct-2013.) |
Ref | Expression |
---|---|
snsstp1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | snsspr1 4345 | . . 3 | |
2 | ssun1 3776 | . . 3 | |
3 | 1, 2 | sstri 3612 | . 2 |
4 | df-tp 4182 | . 2 | |
5 | 3, 4 | sseqtr4i 3638 | 1 |
Colors of variables: wff setvar class |
Syntax hints: cun 3572 wss 3574 csn 4177 cpr 4179 ctp 4181 |
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 |
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-v 3202 df-un 3579 df-in 3581 df-ss 3588 df-pr 4180 df-tp 4182 |
This theorem is referenced by: fr3nr 6979 rngbase 16001 srngbase 16009 lmodbase 16018 ipsbase 16025 ipssca 16028 phlbase 16035 topgrpbas 16043 otpsbas 16052 otpsbasOLD 16056 odrngbas 16067 odrngtset 16070 prdssca 16116 prdsbas 16117 prdstset 16126 imasbas 16172 imassca 16179 imastset 16182 fucbas 16620 setcbas 16728 catcbas 16747 estrcbas 16765 xpcbas 16818 psrbas 19378 psrsca 19389 cnfldbas 19750 cnfldtset 19754 trkgbas 25344 signswch 30638 algbase 37748 clsk1indlem4 38342 clsk1indlem1 38343 rngcbasALTV 41983 ringcbasALTV 42046 |
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