| 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 3420 | . 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 1398 ∩ cin 3213 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-in 3220 |
| This theorem is referenced by: disjpr2 3758 rint0 3993 riin0 4068 disji2 4106 xpriindim 4898 riinint 5023 reseq2 5038 csbresg 5046 resindm 5085 isoselem 5999 zfz1isolem1 11240 fsumm1 12130 bitsinv1 12676 ballotfilemfval 13176 ennnfonelemhf1o 13251 nninfdclemcl 13286 nninfdclemp1 13288 nninfdc 13291 ressvalsets 13364 ressbasd 13367 ressinbasd 13374 ressressg 13375 restval 13545 mgpress 14173 subrngpropd 14465 subrgpropd 14502 crng2idl 14808 basis1 15041 baspartn 15044 eltg 15046 tgdom 15066 ntrval 15104 resttopon2 15172 restopnb 15175 qtopbasss 15515 p1evtxdeqfilem 16435 |
| Copyright terms: Public domain | W3C validator |