Question: Examine the proof below. Drag the proper rule next to the line it justifies. 1. U ~XU or not X. Premise 2. F ~UF or
Examine the proof below. Drag the proper rule next to the line it justifies. 1. U ~XU or not X. Premise 2. F ~UF or not U. Premise 3. ~FNot F. / ~X Premise / Conclusion 4. ~UNot U. 2,3 - 5. ~X 1,4 - HSHypothetical syllogismMTModus TollensDSDisjunctive syllogismMPModus ponens
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