作者：wuzhi61448 | 来源：互联网 | 2023-08-23 17:00
\[F_S\sum_{T\subseteqS}G_T\]\[G_S\sum_{T\subseteqS}(-1)^{|S|-|T|}F_T\]\[F_{S_1,S_2S_n}\
\[
F_S=\sum_{T \subseteq S}G_T
\]
\[
G_S=\sum_{T \subseteq S}(-1)^{|S|-|T|}F_T
\]
\[
F_{S_1,S_2...S_n}=\sum_{T_1 \subseteq S_1,T_2 \subseteq S_2 ... T_n \subseteq S_n}G_{T_1,T_2...T_n}
\]
\[
G_{S_1,S_2...S_n}=\sum_{T_1 \subseteq S_1,T_2 \subseteq S_2 ... T_n \subseteq S_n}\prod_{i=1}^n (-1)^{|S_i|-|T_i|} F_{T_1,T_2...T_n}
\]
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