If n(P) = n(M), then P `→` M.

Answer

To solve the problem, we need to determine if the statement "If n(P) = n(M), then P is equivalent to M" is true. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the notation
- **n(P)** represents the number of elements in set P.
- **n(M)** represents the number of elements in set M.
- The statement says that if the number of elements in set P is equal to the number of elements in set M, then we need to check if P is equivalent to M.

### Step 2: Define equivalent sets
- Two sets are considered **equivalent** if they have the same number of elements, regardless of what those elements are.

### Step 3: Analyze the given condition
- We are given that **n(P) = n(M)**. This means that both sets have the same number of elements.

### Step 4: Apply the definition of equivalent sets
- Since we established that if two sets have the same number of elements, they are equivalent, we can conclude that:
- Since n(P) = n(M), it follows that P is equivalent to M.

### Step 5: Conclusion
- Therefore, we can state that the statement "If n(P) = n(M), then P is equivalent to M" is **true**.

### Final Answer
- **True**: P is equivalent to M.

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