USE THE EIGHTEEN RULES OF INFERENCE TO DERIVE THE CONCLUSION OF THE FOLLOWING SYMBOLIZED argument 1) (X ⊃ Y) · (F v E) 2) (Y ⊃ Z) · (D v E) 3) (X ⊃ Z) ⊃ [(X ⊃ Y) ⊃ W] / W
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We can use Simplification on (1) to get X ⊃ Y: **(1) X ⊃ Y** Show more…
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Show that the argument form with premises $(p \wedge t) \rightarrow$ $(r \vee s), q \rightarrow(u \wedge t), u \rightarrow p,$ and $\neg s$ and conclusion $q \rightarrow r$ is valid by first using Exercise 11 and then using rules of inference from Table 1 Show that the argument form with premises $(p \wedge t) \rightarrow$ $(r \vee s), q \rightarrow(u \wedge t), u \rightarrow p,$ and $\neg s$ and conclusion $q \rightarrow r$ is valid by first using Exercise 11 and then using rules of inference from Table $1 .$ .
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