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| Mirrors > Home > ILE Home > Th. List > eqeltrrid | GIF version | ||
| Description: B membership and equality inference. (Contributed by NM, 4-Jan-2006.) |
| Ref | Expression |
|---|---|
| eqeltrrid.1 | ⊢ 𝐵 = 𝐴 |
| eqeltrrid.2 | ⊢ (𝜑 → 𝐵 ∈ 𝐶) |
| Ref | Expression |
|---|---|
| eqeltrrid | ⊢ (𝜑 → 𝐴 ∈ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqeltrrid.1 | . . 3 ⊢ 𝐵 = 𝐴 | |
| 2 | 1 | eqcomi 2242 | . 2 ⊢ 𝐴 = 𝐵 |
| 3 | eqeltrrid.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝐶) | |
| 4 | 2, 3 | eqeltrid 2325 | 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: dmrnssfld 5047 cnvexg 5328 opabbrex 6135 offval 6314 resfunexgALT 6341 abrexexg 6351 abrexex2g 6353 opabex3d 6354 oprssdmm 6409 unfidisj 7235 residfi 7260 ssfii 7313 djuexb 7390 nqprlu 7920 iccshftr 10412 iccshftl 10414 iccdil 10416 icccntr 10418 mertenslem2 12327 exprmfct 12941 infpnlem1 13166 4sqlem13m 13210 ballotfilemfrcn0 13330 ennnfonelemg 13351 grpidvalg 13751 gzsumvalx 13767 grppropstrg 13882 releqgg 14081 eqgex 14082 prdsval 14279 prdsbaslemss 14280 aprprop 14709 issubassa 15121 0opn 15249 difopn 15351 tgrest 15412 txbasex 15500 txdis1cn 15521 cnmptid 15524 cnmptc 15525 cnmpt1st 15531 cnmpt2nd 15532 cnmpt2c 15533 hmeoima 15553 hmeocld 15555 fsumcncntop 15810 expcn 15812 plycoeid3 16000 |
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