Rongzhou: Created page with "If $A_i:i=1,2, \ldots, n$ are sets, their '''direct product''' $$ \begin{equation} A_1\times A_2 \times \cdots \times A_n=\{(a_1, a_2 \ldots, a_n): a_i \in A_i\}; \end{equation} $$ {{#cite:Q2194}}"

2026-10-16T09:18:53Z

Created page with "If $A_i:i=1,2, \ldots, n$ are sets, their '''direct product''' $$ \begin{equation*} A_1\times A_2 \times \cdots \times A_n=\{(a_1, a_2 \ldots, a_n): a_i \in A_i\}; \end{equation*} $$ <ref>{{#cite:Q2194}}</ref>"

New page

If $A_i:i=1,2, \ldots, n$ are [[set|sets]], their '''direct product'''

$$
\begin{equation*} A_1\times A_2 \times \cdots \times A_n=\{(a_1, a_2 \ldots, a_n): a_i \in A_i\}; \end{equation*}
$$

<ref>{{#cite:Q2194}}</ref>

Direct product (sets) - Revision history

Rongzhou: Created page with "If $A_i:i=1,2, \ldots, n$ are sets, their '''direct product''' $$ \begin{equation*} A_1\times A_2 \times \cdots \times A_n=\{(a_1, a_2 \ldots, a_n): a_i \in A_i\}; \end{equation*} $$ {{#cite:Q2194}}"

Rongzhou: Created page with "If $A_i:i=1,2, \ldots, n$ are sets, their '''direct product''' $$ \begin{equation} A_1\times A_2 \times \cdots \times A_n=\{(a_1, a_2 \ldots, a_n): a_i \in A_i\}; \end{equation} $$ {{#cite:Q2194}}"