When trying to figure out the concepts of logical thinking I was surprised to see that I was understanding the concept much better than expected. After class on Wednesday I felt much better about the language and formatting of logical thinking.

The four types of classes being complied into the forms of A,E,I,and O help me to remember the mixing and matching of the terms universal, particular, affirmative, and negative. Thinking of these in sentence structure with a subject and a predicate allow for easy distinction and recognition of the important areas in which to focus.

While it’s pretty simple when analyzing sentences like, all mice are ugly creatures, I’m not sure it will be so straightforward when analyzing more complex situations such as ones comprised of more than one subject or predicate. How would one go about categorizing a statement where the predicate could have an affirmative and a negative in relation to a subject? My guess is that this is where venn diagrams come into play. Having a visual representation would probably help in order to understand the parts of the statement and how they interact with the other variables.

The open circle is the most challenging one for me to remember because at first I think it’s empty so there must not be anything there. In reality it depicts the possibility of something. It’s quite the glass half full situation. When using the venn diagrams I find it useful to focus on the overlapping portion to determine which class it depicts. For example, if there is an X in the overlapping segment of two empty circles I know it’s an I situation because X shows that there is at least 1 commonality between the S and the P; some S is P.

In conclusion, Some categorical propositions are difficult. Some S is P, I.

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