2. A treatise on logic; as, Mill's Logic.

Log"ic*al (lj"*kal), a. [Cf. F. logique, L. logicus, Gr. logiko`s.] 1.

Of or pertaining to logic; used in logic; as, logical subtilties.

Bacon.

2. According to the rules of logic; as, a logical argument or

inference; the reasoning is logical. Prior.

3. Skilled in logic; versed in the art of thinking and reasoning; as,

he is a logical thinker. Addison.

Log`i*cal"i*ty (?), n. Logicalness.

Log"ic*al*ly (?), adv. In a logical manner; as, to argue logically.

Log"ic*al*ness, n. The quality of being logical.

Lo*gi"cian (?), n. [Cf. F. logicien.] A person skilled in logic. Bacon.

Each fierce logician still expelling Locke.

Pope.

Log"ics (?), n. See Logic.

{ Lo*gis"tic (?), Lo*gis"tic*al (?), } a. [Gr. &?; skilled in

calculating, &?; to calculate, fr. lo`gos word, number, reckoning: cf.

F. logistique.] 1. Logical. [Obs.] Berkeley.

2. (Math.) Sexagesimal, or made on the scale of 60; as, logistic, or

sexagesimal, arithmetic.

Logistic, or Proportional, logarithms, certain logarithmic numbers used

to shorten the calculation of the fourth term of a proportion of which

one of the terms is a given constant quantity, commonly one hour, while

the other terms are expressed in minutes and seconds; -- not now used.

Lo*gis"tics (?), n. 1. (Mil.) That branch of the military art which

embraces the details of moving and supplying armies. The meaning of the

word is by some writers extended to include strategy. H. L. Scott.

2. (Math.) A system of arithmetic, in which numbers are expressed in a

scale of 60; logistic arithmetic.

Log"man (?), n.; pl. Logmen (&?;). A man who carries logs. Shak.

Log`o*dæd"a*ly (?), n. [Gr. &?;. See Logos, and Dædal.] Verbal

legerdemain; a playing with words. [R.] Coleridge.

Log"o*gram (?), n. [Gr. lo`gos word + -gram.] A word letter; a

phonogram, that, for the sake of brevity, represents a word; as, |, i.

e., t, for it. Cf. Grammalogue.

Lo*gog"ra*pher (?), n. 1. A chronicler; one who writes history in a

condensed manner with short simple sentences.

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