[SIZE=3][COLOR=black]משפט[/COLOR][/SIZE]
עבור כל שלוש מטריצות [SIZE=2]A[/SIZE][SIZE=1] mxn [SIZE=2]B[/SIZE] nxq [SIZE=2]C[/SIZE] qxp [SIZE=2]מתקיים:[/SIZE] [/SIZE][SIZE=2]A(BC)=(AB)C.[/SIZE]
[SIZE=3][COLOR=black]הוכחה:[/COLOR][/SIZE]
[IMG]http://img703.imageshack.us/img703/5228/69222080.png[/IMG]
