Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > ssid | GIF version |
Description: Any class is a subclass of itself. Exercise 10 of [TakeutiZaring] p. 18. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Andrew Salmon, 14-Jun-2011.) |
Ref | Expression |
---|---|
ssid | ⊢ 𝐴 ⊆ 𝐴 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 19 | . 2 ⊢ (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐴) | |
2 | 1 | ssriv 3106 | 1 ⊢ 𝐴 ⊆ 𝐴 |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1481 ⊆ wss 3076 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-11 1485 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-in 3082 df-ss 3089 |
This theorem is referenced by: ssidd 3123 eqimssi 3158 eqimss2i 3159 inv1 3404 difid 3436 undifabs 3444 pwidg 3529 elssuni 3772 unimax 3778 intmin 3799 rintm 3913 iunpw 4409 sucprcreg 4472 tfisi 4509 peano5 4520 xpss1 4657 xpss2 4658 residm 4859 resdm 4866 resmpt3 4876 ssrnres 4989 cocnvss 5072 dffn3 5291 fimacnv 5557 foima2 5661 tfrlem1 6213 rdgss 6288 fpmg 6576 findcard2d 6793 findcard2sd 6794 f1finf1o 6843 fidcenumlemr 6851 casef 6981 nnnninf 7031 1idprl 7422 1idpru 7423 ltexprlemm 7432 suplocexprlemmu 7550 elq 9441 expcl 10342 serclim0 11106 fsum2d 11236 fsumabs 11266 fsumiun 11278 reef11 11442 ressid 12059 topopn 12214 fiinbas 12255 topbas 12275 topcld 12317 ntrtop 12336 opnneissb 12363 opnssneib 12364 opnneiid 12372 idcn 12420 cnconst2 12441 lmres 12456 retopbas 12731 cnopncntop 12745 abscncf 12780 recncf 12781 imcncf 12782 cjcncf 12783 mulc1cncf 12784 cncfcn1cntop 12789 cncfmpt2fcntop 12793 addccncf 12794 cdivcncfap 12795 negfcncf 12797 expcncf 12800 cnrehmeocntop 12801 cnlimcim 12848 cnlimc 12849 cnlimci 12850 dvcnp2cntop 12871 dvcn 12872 dvef 12896 efcn 12897 |
Copyright terms: Public domain | W3C validator |