Determine whether the following is valid or invalid:
If he doesn't think he'll pass the class, then either he'll be talking to someone, or he won't be paying attention, or both. Well, look at him. He's talking to someone. And he's not paying the least bit of attention. Clearly he doesn't think he'll pass the class.

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The Answer of Determine whether the following is valid or invalid:
If he doesn't think he'll pass the class, then either he'll be talking to someone, or he won't be paying attention, or both. Well, look at him. He's talking to someone. And he's not paying the least bit of attention. Clearly he doesn't think he'll pass the class.

Determine Whether the Following Is Valid or Invalid