| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > eqeltri | GIF version | ||
| Description: Substitution of equal classes into membership relation. (Contributed by NM, 5-Aug-1993.) |
| Ref | Expression |
|---|---|
| eqeltr.1 | ⊢ 𝐴 = 𝐵 |
| eqeltr.2 | ⊢ 𝐵 ∈ 𝐶 |
| Ref | Expression |
|---|---|
| eqeltri | ⊢ 𝐴 ∈ 𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqeltr.2 | . 2 ⊢ 𝐵 ∈ 𝐶 | |
| 2 | eqeltr.1 | . . 3 ⊢ 𝐴 = 𝐵 | |
| 3 | 2 | eleq1i 2304 | . 2 ⊢ (𝐴 ∈ 𝐶 ↔ 𝐵 ∈ 𝐶) |
| 4 | 1, 3 | mpbir 146 | 1 ⊢ 𝐴 ∈ 𝐶 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1402 ∈ wcel 2209 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is referenced by: eqeltrri 2312 3eltr4i 2320 intab 3994 inex2 4263 vpwex 4311 ord3ex 4322 vsnex 4343 uniopel 4392 onsucelsucexmid 4672 nnpredcl 4765 elvvuni 4834 isarep2 5463 acexmidlemcase 6070 abrexex2 6343 oprabex 6351 oprabrexex2 6353 mpoexw 6439 rdg0 6648 frecex 6655 1on 6684 2on 6686 3on 6688 4on 6690 2oex 6694 1onn 6783 2onn 6784 3onn 6785 4onn 6786 mapsnf1o2 6968 exmidpw 7205 exmidpw2en 7209 unfiexmid 7215 xpfi 7229 ssfirab 7234 fnfi 7240 iunfidisj 7250 fidcenumlemr 7262 sbthlemi10 7273 fczfsuppd 7287 ctmlemr 7438 nninfex 7451 exmidonfinlem 7535 acfun 7553 exmidaclem 7554 pw1ne1 7578 ccfunen 7620 nqex 7720 nq0ex 7797 1pr 7911 ltexprlempr 7965 recexprlempr 7989 cauappcvgprlemcl 8010 caucvgprlemcl 8033 caucvgprprlemcl 8061 addvalex 8201 peano1nnnn 8209 peano2nnnn 8210 axcnex 8216 ax1cn 8218 ax1re 8219 pnfxr 8368 mnfxr 8372 inelr 8902 cju 9281 2re 9353 3re 9357 4re 9360 5re 9362 6re 9364 7re 9366 8re 9368 9re 9370 2nn 9445 3nn 9446 4nn 9447 5nn 9448 6nn 9449 7nn 9450 8nn 9451 9nn 9452 nn0ex 9548 nneoor 9727 zeo 9730 deccl 9770 decnncl 9775 numnncl2 9778 decnncl2 9779 numsucc 9795 numma2c 9801 numadd 9802 numaddc 9803 nummul1c 9804 nummul2c 9805 xnegcl 10213 xrex 10237 ioof 10352 uzennn 10851 xnn0nnen 10852 seqex 10864 m1expcl2 10976 faccl 11151 facwordi 11156 faclbnd2 11158 bccl 11183 hashf1lem2 11264 lswex 11334 crre 11600 remim 11603 absval 11745 climle 12078 climcvg1nlem 12093 iserabs 12220 geo2lim 12261 prodfclim1 12289 fprodle 12385 ere 12415 ege2le3 12416 eftlub 12435 efsep 12436 tan0 12476 ef01bndlem 12501 nn0o 12652 pczpre 13054 pockthi 13115 igz 13131 ballotfilemofi 13197 ballotfilemonn 13199 ballotfilemefi 13215 ballotfilem7 13257 ennnfonelemj0 13270 ennnfonelem0 13274 ndxarg 13353 ndxslid 13355 strndxid 13358 basendxnn 13386 strle1g 13437 plusgndxnn 13442 2strbasg 13451 2stropg 13452 tsetndxnn 13520 plendxnn 13534 dsndxnn 13549 unifndxnn 13559 rmodislmodlem 14659 rmodislmod 14660 cndsex 14862 znval 14943 znle 14944 znbaslemnn 14946 znbas 14951 znzrhval 14954 psrval 14973 fczpsrbag 14979 setsmsbasg 15503 cnbl0 15558 cnopncntop 15568 cnopn 15569 remet 15572 divcnap 15589 expcn 15593 climcncf 15608 idcncf 15625 expcncf 15633 cnrehmeocntop 15634 hovercncf 15670 plyrecj 15787 sincn 15793 coscn 15794 2logb9irrALT 15999 2irrexpq 16001 2irrexpqap 16003 lgslem4 16036 lgsdir2lem2 16062 edgfndxnn 16163 setsvtx 16206 usgrstrrepeen 16386 eulerpathprum 16635 konigsbergumgr 16642 konigsberglem5 16647 konigsberg 16648 bdinex2 16840 bj-inex 16847 012of 16937 2o01f 16938 peano3nninf 16955 cvgcmp2nlemabs 16986 trilpolemisumle 16992 |
| Copyright terms: Public domain | W3C validator |