PHI 1101 Lecture Notes - Lecture 4: Brown Recluse Spider, Electrical Contacts, If....

• School: University of Ottawa
• Department: Philosophy
• Course: PHI 1101
• Professor: Mark Brown

Document Summary

1- if the presence of the anthropologist changed the normal lifestyle of the islanders, then her conclusions are not reliable. 2- if the spider is a brown recluse, then it is dangerous. These arguments both contain two premises and a conclusions. The other premise is the same as the clause that comes immediately after the if in the conditional. The conclusion is the same as the clause that follows then in the conditional. --> if we use letters to replace the component sentences in either argument, we represent the form in this way: Sentential form: letters replace simple sentences that make up the compound sentences of the argument. The letters p and q are called sentential variables: connectives. We can simplify the representation of argument forms by using symbols to replace ordinary connective words like and , or , and if then that are used to join simple sentences. Either it is a cat or a dog.