*n.**problème*, L. *problema*, fr. Gr. ? anything
thrown forward, a question proposed for solution, fr. ? to throw or
lay before; ? before, forward + ? to throw. Cf. __Parable__.
]

**1.***Bacon.*

**2.***(Math.)*

☞ *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.)*, **Solid problem***(Geom.)*,