Fr.: raisonnement déductif
Fr.: induction, raisonnement inductif
Reasoning from detailed facts to general principles.
1; 2; 3) râyan; 3) xerad; 4) râyanidan
1) A basis or cause, as for some belief, action, fact, event,
M.E. resoun, reisun (n.), from O.Fr. reisun, reson, raison, from L. rationem (nom. ratio) "reckoning, understanding, motive, cause," from ratus, p.p. of reor, reri "to reckon, think;" cognate with Pers. râ, rây "reason," as below; O.C.S. raditi "to take thought, attend to," O.Ir. im-radim "to deliberate, consider."
Râyan, from rây + -an. The first component rây, râ "because of, by reason of," in barây-e "because of," cerâ "for what reason, why?," irâ "for this reason, therefore," zirâ "because, on account of;" also rây "opinion, consult;" râymand "reasonable, wise;" râyzan "a person whom one consults; wise;" Mid.Pers. râd, rây "because of, for the sake of, on behalf of;" O.Pers. rā "reason, cause," in rādiy "for this reason;" Av. rādah- "generosity, care, generous," rāsta- "to do right, to fit;" cf. Skt. rādh- "to succeed, be successful;" Gk. arithmos "number, amount;" L. ratio, as above; PIE base *rē-, *rə-. The second component -an a suffix as in rowzan, rowšan, suzan, rasan, zaqan, hâvan, etc.
Being in accordance with reason.
A process of thinking involving → inference, or of solving problems by employing general principles.
Verbal noun of → reason.