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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 7450 nninfisollemne 7471 nninfisol 7473 exmidonfinlem 7545 pw1on 7585 indpi 7709 nq0m0r 7823 genpelxp 7878 un0mulcl 9597 znegcl 9675 zeo 9751 eqreznegel 10014 xnegcl 10234 modqid0 10787 q2txmodxeq0 10821 ser0 10970 expcllem 10987 m1expcl2 10998 nn0ltexp2 11147 bcval 11187 bccl 11205 hashinfom 11217 lswex 11356 pfxclz 11451 pfxwrdsymbg 11462 cats1un 11493 cats1fvn 11536 cats1fvnd 11537 resqrexlemlo 11779 iserge0 12109 sumrbdclem 12144 fsum3cvg 12145 summodclem3 12147 summodclem2a 12148 fisumss 12159 binom 12251 bcxmas 12256 prodf1 12309 prodrbdclem 12338 fproddccvg 12339 prodmodclem2a 12343 fprodntrivap 12351 prodssdc 12356 fprodssdc 12357 gcdval 12736 gcdcl 12743 lcmcl 12850 pcxnn0cl 13089 pcxcl 13090 pcmptcl 13121 infpnlem2 13139 zgz 13152 4sqlem19 13188 ballotfilemrval 13261 znf1o 14986 ssblps 15526 ssbl 15527 xmeter 15537 blssioo 15654 elply 15835 plycj 15862 1sgmprm 16108 lgslem4 16122 lgsne0 16157 2sqlem9 16243 2sqlem10 16244 uhgr0enedgfi 16477 vtxdgfi0e 16536 eulerpathprum 16721 bj-charfun 16833 012of 17023 2o01f 17024 nninfsellemeqinf 17059 nninffeq 17063 trilpolemclim 17085 iswomni0 17101 |
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