В4
1) {A,B,C,D,O}⊂(ABC)
2) (SO)⊂(ASC)
(SO)⊂(BSD)
(BO)⊂(ABC)
(BO)⊂(BSD)
(AB)⊂(ABC)
(AB)⊂(ABS)
3)(DO)∩(BSD) = {B}
(ASC)∩(BSD)=(SO)
B5
1) {A,B,C,D,E,O} ⊂ (AOB)
2) (OE)⊂ (ABC)
(OE) ⊂(OSE)
(BS)⊂(BSC)
(BS)⊂(BSA)
(BS)⊂(BSD)
(SO)⊂(ASC)
(SO)⊂(BSD)
(SO)⊂(SOE)
3) (CO)∩(ADS) = {A}
(SOE)∩(BSD)=(SO)
B3
1){A,B,C.D,K}⊂ ((ABC)
2)(CC₁)⊂ (CC₁B)
(CC₁) ⊂ (CC₁D₁)
(CC₁)⊂(CKC₁)
(DC₁)⊂ (DD₁C)
(DC₁) ⊂(BDC₁)
(BC)⊂(ABC)
(BC)⊂ (BCC₁)
3) (DK)∩(BCC₁)={B}
(KCC₁)∩(DD₁C₁) = (CC₁)