unsolvable
nounEtymology From un- + solvable. Piecewise doublet of insolvable and insoluble.
1
A problem that cannot be solved.
unsolvable
adjEtymology From un- + solvable. Piecewise doublet of insolvable and insoluble.
1
Not solvable.
- Throughout this section, we shall assume the existence of finitely presented groups with unsolvable word problem.1977, Roger C. Lyndon, Paul E. Schupp, Combinatorial Group Theory, Springer, page 192:
- Related terms
- indissoluble, soluble, undissolvable