Definitions, if S is a Sam Temple space and E is an event that is a set of choppers, S.E ' is an event that contains a member that is in the Sam space, but not in the temple event S E.Example 7 an integer from the number one selection of 1, 2, 3, ..., 10. If E1 is an event that has the number divided by 4 and E2 is an event that has already included a number of square root is an integer. You shall find the E1 and E2.
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