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Line 1: − == What is logic? == − The Greek verb λογίζω actually occurs in the context of a marketplace transaction; the "reckoning" to which it refers is of the cash settlement of that transaction. More broadly, the verb refers to a person's understanding of the world around him, and of his actions and the consequences of those actions. − Even more broadly, one's view of logic depends on one's view of the world, and of whether things beyond man are "real," and to what extent. Four views on the subject have been current at various times in human history: − − * [[Logical objectivism]] (closely akin to Randian [[Objectivism]] but not identical to it) states that reality is what it is, and the principles of logic are what they are, independent of any person's perception of them or efforts (or lack of effort) to understand them. − * [[Logical subjectivism]] states that what we call the "laws of nature" are merely our attempts to understand nature, and are not fundamental properties ''of'' nature. − * [[Logical positivism]] states that human beings know only that which they directly perceive and register in their minds. − * [[Solipsism]] holds that nothing is provably real except the fundamental facility of human consciousness--in other words, nothing that a human being sees need be real. − − Whether anything is provably real beyond the self, and if so, what, is one of the most important decisions that a human being will ever make. To return to the cash-reckoning analogy that the original Greek word suggests: if the cash settlement is objectively provable, then both parties can agree upon it and close the transaction amicably. If, however, reality is only what one perceives, then either party may perceive the transaction in a manner to his own advantage, and need not agree with the other party. As a result, an amicable settlement might not be possible, or if it is, then it is unreliable and depends on skill at negotiation (or emotional manipulation), or even on whim. − − Therefore, ''logic constitutes the framework for agreement'' between and among human beings, as to the nature of the earth and the cosmos, and as to any person's responsibilities to himself and to others.
→What is logic?: delete entire section - silly, and has nothing to do with the topic
[[Logic]] ([[Greek]] λογίζω I reckon, I count, from λόγος a word) is a branch of [[philosophy]] that deals with and attempts to guide the faculty of human reason.
[[Logic]] ([[Greek]] λογίζω I reckon, I count, from λόγος a word) is a branch of [[philosophy]] that deals with and attempts to guide the faculty of human reason.
== Types of logic ==
== Types of logic ==