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Mirrors > Home > ILE Home > Th. List > eqeltri | Unicode version |
Description: Substitution of equal classes into membership relation. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
eqeltr.1 | |
eqeltr.2 |
Ref | Expression |
---|---|
eqeltri |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqeltr.2 | . 2 | |
2 | eqeltr.1 | . . 3 | |
3 | 2 | eleq1i 2103 | . 2 |
4 | 1, 3 | mpbir 134 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1243 wcel 1393 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-5 1336 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-4 1400 ax-17 1419 ax-ial 1427 ax-ext 2022 |
This theorem depends on definitions: df-bi 110 df-cleq 2033 df-clel 2036 |
This theorem is referenced by: eqeltrri 2111 3eltr4i 2119 intab 3644 inex2 3892 pwex 3932 ord3ex 3941 uniopel 3993 onsucelsucexmid 4255 elvvuni 4404 isarep2 4986 acexmidlemcase 5507 abrexex2 5751 oprabex 5755 oprabrexex2 5757 rdg0 5974 frecex 5981 1on 6008 2on 6009 3on 6011 4on 6012 1onn 6093 2onn 6094 3onn 6095 4onn 6096 nqex 6461 nq0ex 6538 1pr 6652 ltexprlempr 6706 recexprlempr 6730 cauappcvgprlemcl 6751 caucvgprlemcl 6774 caucvgprprlemcl 6802 addvalex 6920 peano1nnnn 6928 peano2nnnn 6929 axcnex 6935 ax1cn 6937 ax1re 6938 inelr 7575 cju 7913 2re 7985 3re 7989 4re 7992 5re 7994 6re 7996 7re 7998 8re 8000 9re 8002 10re 8004 2nn 8077 3nn 8078 4nn 8079 5nn 8080 6nn 8081 7nn 8082 8nn 8083 9nn 8084 10nn 8085 nn0ex 8187 nneoor 8340 zeo 8343 decnncl 8380 deccl 8381 numnncl2 8384 decnncl2 8385 numsucc 8393 numma2c 8400 numadd 8401 numaddc 8402 nummul1c 8403 nummul2c 8404 pnfxr 8692 mnfxr 8694 xnegcl 8745 xrex 8756 ioof 8840 iseqex 9213 m1expcl2 9277 crre 9457 remim 9460 absval 9599 climle 9854 climcvg1nlem 9868 bdinex2 10020 bj-inex 10027 |
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