| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ineq2d | GIF version | ||
| Description: Equality deduction for intersection of two classes. (Contributed by NM, 10-Apr-1994.) |
| Ref | Expression |
|---|---|
| ineq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| ineq2d | ⊢ (𝜑 → (𝐶 ∩ 𝐴) = (𝐶 ∩ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ineq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | ineq2 3377 | . 2 ⊢ (𝐴 = 𝐵 → (𝐶 ∩ 𝐴) = (𝐶 ∩ 𝐵)) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → (𝐶 ∩ 𝐴) = (𝐶 ∩ 𝐵)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1373 ∩ cin 3174 |
| 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-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2189 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-v 2779 df-in 3181 |
| This theorem is referenced by: disjpr2 3708 rint0 3939 riin0 4014 disji2 4052 xpriindim 4835 riinint 4959 reseq2 4974 csbresg 4982 resindm 5021 isoselem 5914 zfz1isolem1 11024 fsumm1 11888 bitsinv1 12434 ennnfonelemhf1o 12945 nninfdclemcl 12980 nninfdclemp1 12982 nninfdc 12985 ressvalsets 13057 ressbasd 13060 ressinbasd 13067 ressressg 13068 restval 13238 mgpress 13854 subrngpropd 14139 subrgpropd 14176 crng2idl 14454 basis1 14680 baspartn 14683 eltg 14685 tgdom 14705 ntrval 14743 resttopon2 14811 restopnb 14814 qtopbasss 15154 |
| Copyright terms: Public domain | W3C validator |