Since grass is not pink with purple polka dots, it follows that I'm not happy. This argument is a. Invalid as it denies an antecedent b. Valid as it denies a consequent c. Valid as it affirms an antecedent d. Invalid as it affirms a disjunct e. Valid as it affirms a consequent 29. One's eyes are not both used to the bright light of day and used to the dim shadows of the cave. The prisoners' eyes in Plato's cave are not used to the bright light of day, so they are used to the dim shadows of the cave.
Some students are protesters.
Some protesters are not serious. Therefore some students are not serious. Water is a liquid and water is not a liquid. Thus God exists. All of the above.