| 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 3402 | . 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 1397 ∩ cin 3199 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-v 2804 df-in 3206 |
| This theorem is referenced by: disjpr2 3733 rint0 3967 riin0 4042 disji2 4080 xpriindim 4868 riinint 4993 reseq2 5008 csbresg 5016 resindm 5055 isoselem 5960 zfz1isolem1 11103 fsumm1 11976 bitsinv1 12522 ennnfonelemhf1o 13033 nninfdclemcl 13068 nninfdclemp1 13070 nninfdc 13073 ressvalsets 13146 ressbasd 13149 ressinbasd 13156 ressressg 13157 restval 13327 mgpress 13943 subrngpropd 14229 subrgpropd 14266 crng2idl 14544 basis1 14770 baspartn 14773 eltg 14775 tgdom 14795 ntrval 14833 resttopon2 14901 restopnb 14904 qtopbasss 15244 p1evtxdeqfilem 16161 |
| Copyright terms: Public domain | W3C validator |