An ansatz is an assumed form for a mathematical statement that is not based on any underlying theory or principle.
An example from physics is the Bethe Ansatz (Müller).
Ansatz
See also
Conjecture, Hypothesis, Principle, PropositionThis entry contributed by Mark D. Carrara
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References
Müller, G. "Introduction to the Bethe Ansatz." http://www.phys.uri.edu/~gerhard/introbethe.html.Referenced on Wolfram|Alpha
AnsatzCite this as:
Weisstein, Eric W., with contributions by Mark D. Carrara. "Ansatz." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Ansatz.html