The limitations inherent in the use of models for establishing consistency, and the growing apprehension that the standard formulations of many mathematical systems might all harbor internal contradictions, led to new attacks upon the problem. An alternative to relative proofs of consistency was proposed by Hilbert. He sought to construct “absolute” proofs, by which the consistency of systems could be established without assuming the consistency of some other system.
Gilbert is determined,
Gilbert does not budge,
Gilbert falls and learns
Gilbert does not give up
Gilbert puts consistent efforts,
In establishing absolute proof of
You guessd it right,
"Consistency"