PHIL 1504 Lecture Notes - Lecture 1: A Priori And A Posteriori, Fetus, Inductive Reasoning

• School: Virginia Tech
• Department: Philosophy
• Course: PHIL 1504
• Professor: Caitlin Parker

Document Summary

Remember: a truth table gives the truth value for a compound proposition for every possible truth value of its simple components: each possible arrangement of blah blah blah thanks i cannot finish, more stuff. Tautologous statements, also known as logically true statements, are true regardless of the truth values off their components: self-contradictory statements. Self-contradictory statements, also known as logically false statements, are false regardless of the truth values of their components: contingent statements. Contingent statements are true or false depending on the truth values of their components. Comparing statements: we can also use truth tables to see if statements have a particular sort of logical relationship , logically equivalent statements. To compare the truth values for the main connectives, you must use the same combination of truth value possibilities for both statements, as you go down the rows: logically contradictory statements. Logically contradictory statements have opposite truth values on each line under their main operators: logically consistent statements.