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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 2306 | 1 ⊢ (𝜑 → 𝐴 ∈ 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1395 ∈ wcel 2200 |
| 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 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-4 1556 ax-17 1572 ax-ial 1580 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 df-clel 2225 |
| This theorem is referenced by: eqeltrrdi 2321 snexprc 4270 onsucelsucexmidlem 4621 dcextest 4673 nnpredcl 4715 ovprc 6043 nnmcl 6635 xpsnen 6988 pw1fin 7083 xpfi 7105 snexxph 7128 ctssdclemn0 7288 nninfisollemne 7309 nninfisol 7311 exmidonfinlem 7382 pw1on 7422 indpi 7540 nq0m0r 7654 genpelxp 7709 un0mulcl 9414 znegcl 9488 zeo 9563 eqreznegel 9821 xnegcl 10040 modqid0 10584 q2txmodxeq0 10618 ser0 10767 expcllem 10784 m1expcl2 10795 nn0ltexp2 10943 bcval 10983 bccl 11001 hashinfom 11012 lswex 11136 pfxclz 11226 pfxwrdsymbg 11237 cats1un 11268 cats1fvn 11311 cats1fvnd 11312 resqrexlemlo 11539 iserge0 11869 sumrbdclem 11903 fsum3cvg 11904 summodclem3 11906 summodclem2a 11907 fisumss 11918 binom 12010 bcxmas 12015 prodf1 12068 prodrbdclem 12097 fproddccvg 12098 prodmodclem2a 12102 fprodntrivap 12110 prodssdc 12115 fprodssdc 12116 gcdval 12495 gcdcl 12502 lcmcl 12609 pcxnn0cl 12848 pcxcl 12849 pcmptcl 12880 infpnlem2 12898 zgz 12911 4sqlem19 12947 znf1o 14630 ssblps 15114 ssbl 15115 xmeter 15125 blssioo 15242 elply 15423 plycj 15450 1sgmprm 15683 lgslem4 15697 lgsne0 15732 2sqlem9 15818 2sqlem10 15819 vtxdgfi0e 16054 bj-charfun 16225 012of 16416 2o01f 16417 nninfsellemeqinf 16442 nninffeq 16446 trilpolemclim 16464 iswomni0 16479 |
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