1. The Hopf theorem is a statement in differential topology , saying that the topological degree is the continuous homotopy invariant of only maps to spheres .
2. The Hopf - Theorem is a statement in the differential topology which states that the topological degree is the only homotopy - invariant of continuous maps to spheres .

Select your answer from the options. Are these two sentences paraphrases of each other?
Options are: 1). no. 2). yes....I think the answer is
1).