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problem
WordNet 2.0
  • a source of difficulty
  • "one trouble after another delayed the job"
  • "what''s the problem?"
  • a question raised for consideration or solution
  • "our homework consisted of ten problems to solve"
  • a state of difficulty that needs to be resolved
  • "she and her husband are having problems"
  • "it is always a job to contact him"
  • "urban problems such as traffic congestion and smog"
problem
Webster's Revised Unabridged Dictionary (1913)
  • 1. A question proposed for solution; a matter stated for examination or proof; hence, a matter difficult of solution or settlement; a doubtful case; a question involving doubt. Bacon.

    2. (Math.) Anything which is required to be done; as, in geometry, to bisect a line, to draw a perpendicular; or, in algebra, to find an unknown quantity.

    [MORE]
    Problem differs from theorem in this, that a problem is something to be done, as to bisect a triangle, to describe a circle, etc.; a theorem is something to be proved, as that all the angles of a triangle are equal to two right angles.

    Plane problem
    (Geom.), a problem that can be solved by the use of the rule and compass.

    Solid problem
    (Geom.), a problem requiring in its geometric solution the use of a conic section or higher curve.

 

I don't want to achieve immortality through my work. I want to achieve it through not dying.

Woody Allen
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