| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 5045 cnvexg 5325 opabbrex 6132 offval 6310 resfunexgALT 6337 abrexexg 6347 abrexex2g 6349 opabex3d 6350 oprssdmm 6405 unfidisj 7229 residfi 7254 ssfii 7308 djuexb 7384 nqprlu 7914 iccshftr 10396 iccshftl 10398 iccdil 10400 icccntr 10402 mertenslem2 12303 exprmfct 12916 infpnlem1 13138 4sqlem13m 13182 ballotfilemfrcn0 13273 ennnfonelemg 13294 grpidvalg 13693 gzsumvalx 13709 grppropstrg 13824 releqgg 14023 eqgex 14024 prdsval 14173 prdsbaslemss 14174 aprprop 14601 issubassa 15013 0opn 15107 difopn 15209 tgrest 15270 txbasex 15358 txdis1cn 15379 cnmptid 15382 cnmptc 15383 cnmpt1st 15389 cnmpt2nd 15390 cnmpt2c 15391 hmeoima 15411 hmeocld 15413 fsumcncntop 15668 expcn 15670 plycoeid3 15858 |
| Copyright terms: Public domain | W3C validator |