Maths · Relations, type of relations, equivalence relations

Which of the following is NOT equivalent to

Which of the following is NOT equivalent to \( \boldsymbol{p} \rightarrow \boldsymbol{q} ? \)

  • A. ponly if q
  • B. q is necessary for \( p \)
  • C. q only if \( p \)
  • D. p is sufficient for \( q \)

Step-by-step solution

The implication p → q is logically equivalent to 'p only if q', 'q is necessary for p', and 'p is sufficient for q'. 'q only if p' means q → p, which is the converse and not equivalent.
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