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| Mirrors > Home > ILE Home > Th. List > eqeltrdi | GIF version | ||
| Description: A membership and equality inference. (Contributed by NM, 4-Jan-2006.) |
| Ref | Expression |
|---|---|
| eqeltrdi.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| eqeltrdi.2 | ⊢ 𝐵 ∈ 𝐶 |
| Ref | Expression |
|---|---|
| eqeltrdi | ⊢ (𝜑 → 𝐴 ∈ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqeltrdi.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | eqeltrdi.2 | . . 3 ⊢ 𝐵 ∈ 𝐶 | |
| 3 | 2 | a1i 9 | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝐶) |
| 4 | 1, 3 | eqeltrd 2315 | 1 ⊢ (𝜑 → 𝐴 ∈ 𝐶) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 |
| This proof depends on 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 proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is used by: eqeltrrdi 2330 snexprc 4323 onsucelsucexmidlem 4676 dcextest 4728 nnpredcl 4770 ovprc 6121 nnmcl 6754 xpsnen 7119 pw1fin 7217 xpfi 7239 mapfi 7261 snexxph 7267 0fsupp 7298 ctssdclemn0 7451 nninfisollemne 7472 nninfisol 7474 exmidonfinlem 7546 pw1on 7586 indpi 7710 nq0m0r 7824 genpelxp 7879 un0mulcl 9602 znegcl 9680 zeo 9756 eqreznegel 10024 xnegcl 10245 modqid0 10802 q2txmodxeq0 10836 ser0 10985 expcllem 11002 m1expcl2 11013 nn0ltexp2 11163 bcval 11203 bccl 11221 hashinfom 11233 lswex 11372 pfxclz 11467 pfxwrdsymbg 11478 cats1un 11509 cats1fvn 11552 cats1fvnd 11553 resqrexlemlo 11795 iserge0 12128 sumrbdclem 12163 fsum3cvg 12164 summodclem3 12166 summodclem2a 12167 fisumss 12178 binom 12270 bcxmas 12275 prodf1 12328 prodrbdclem 12357 fproddccvg 12358 prodmodclem2a 12362 fprodntrivap 12370 prodssdc 12375 fprodssdc 12376 gcdval 12755 gcdcl 12762 lcmcl 12869 pcxnn0cl 13112 pcxcl 13113 pcmptcl 13144 infpnlem2 13162 zgz 13175 4sqlem19 13211 ballotfilemrval 13313 znf1o 15070 ssblps 15617 ssbl 15618 xmeter 15628 blssioo 15745 elply 15926 plycj 15953 1sgmprm 16249 lgslem4 16288 lgsne0 16323 2sqlem9 16409 2sqlem10 16410 uhgr0enedgfi 16643 vtxdgfi0e 16702 eulerpathprum 16887 bj-charfun 16999 012of 17189 2o01f 17190 nninfsellemeqinf 17225 nninffeq 17229 trilpolemclim 17252 iswomni0 17268 |
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