Which one of the following could be the order in which the runners run, from first to fourth?

mmohammed01 on July 14, 2021

Combining rules 3 and 4

Hello, Can you help me understand how rules 3 and 4 are combined? 3. No U-> R2 No R2 ->U 4. R2 -> No U

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Emil-Kunkin on January 15 at 02:47AM

This is effectively a biconditional. We know that if one of our sufficient is true, the other is true. Treat these two conditions as married: either they are both true or they are both false.n