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Rationality is the quality of being guided by or based on reason.In this regard, a person acts rationally if they have a good reason for what they do, or a belief is rational if it is based on strong evidence.
Logical grammar or rational grammar is a term used in the history and philosophy of linguistics to refer to certain linguistic and grammatical theories that were prominent until the early 19th century and later influenced 20th-century linguistic thought.
As the study of argument is of clear importance to the reasons that we hold things to be true, logic is of essential importance to rationality. Arguments may be logical if they are "conducted or assessed according to strict principles of validity", [1] while they are rational according to the broader requirement that they are based on reason and knowledge.
Logical reasoning is norm-governed in the sense that it aims to formulate correct arguments that any rational person would find convincing. The main discipline studying logical reasoning is logic . Distinct types of logical reasoning differ from each other concerning the norms they employ and the certainty of the conclusion they arrive at.
For example, if the formula () stands for the sentence "Socrates is a banker" then the formula articulates the sentence "It is possible that Socrates is a banker". [127] To include these symbols in the logical formalism, modal logic introduces new rules of inference that govern what role they play in inferences.
Quintilian and classical rhetoric used the term color for the presenting of an action in the most favourable possible perspective. [5] Laurence Sterne in the eighteenth century took up the point, arguing that, were a man to consider his actions, "he will soon find, that such of them, as strong inclination and custom have prompted him to commit, are generally dressed out and painted with all ...
Philosopher Robert Nozick accepted the reality of Weber's two kinds of rationality. He believed that conditional means are capable of achieving unconditional ends. He did not search traditional philosophies for value rational propositions about justice, as Rawls had done, because he accepted well-established utilitarian propositions, which Rawls found unacceptable.
A statement is logically true if, and only if its opposite is logically false. The opposite statements must contradict one another. In this way all logical connectives can be expressed in terms of preserving logical truth. The logical form of a sentence is determined by its semantic or syntactic structure and by the placement of logical constants.