Mathematics, 24.03.2021 19:10, lizzzyyy60

Which statement must be true? Select all that apply. A. If p → q and q → r are true, then p → r is true. B. If p → q and p are true, then q is true. C. If p → q and r are true, then q → r is true. D. If p → q and q are true, then p is true.

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Which statement must be true? Select all that apply. A. If p → q and q → r are true, then p → r is t...