Common sense reasoning employs such notions as causality, analogy, and equivalence but uses them in a different way than do formal languages. For example, if we say, “Inflation caused Jane to ask for a raise,” we are suggesting a more complicated causal relationship than that found in simple physical laws. If we say “Use a knife or chisel to trim the wood,” we are suggesting an important notion of equivalence. Discuss the problems of translating these and other such concepts into a formal language.