PHIL-125 Lecture Notes - Lecture 17: Middle Term, Creation Science, Obversion
1 Mar 2016
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A sequence or chain of syllogisms with intermediate conclusions missing. All things that poison drinking water are things that cause disease and death. All chemicals percolating through the soil are things that contaminate aquifers. All dumped chemicals are things that percolate through the soil. All things that contaminate aquifers are things that poison drinking water. All dumped chemicals are things that cause disease and death. P things that poison drinking water. (middle term. ) C things that cause disease and death. (present in the conclusion, and is the predicate. ) S chemicals percolating through the soil. (middle term. ) A things that contaminate acquifers. (middle term. ) D dumped chemicals. (present in the conclusion, and is the minor term. ) We now have an argument without a conclusion. Since if all a are c and taking the third premises And from there, we know that from the last premise In turn, all d are c. so we arrive at the conclusion.
