premise: The rhythmic gymnast completes her floor exercise at the competition. hypothesis: The gymnast cannot finish her exercise.
contradiction: The gymnast either completes her floor exercise or she cannot finish it. Both cannot happen simultaneously.|contradiction: If a gymnast cannot finish her exercise, then it cannot be claimed that she completes her exercise.|contradiction: Sentence 1 states the subject completes her exercise and sentence 2 states the subject cannot finish her exercise.