Control factor 1 is creativity or invention and control factor 2 is logical rigour or conventional reasoning.

Path a-d is the case of a higher creative content, together with a high level of logical rigour, approaching an optimal solution.

Line a-f is the case of the failure of an approach with a high level of creativity but too low a level of logical rigour.

The level of logical rigour is initially very low and is thus likely to lead to an unsuccessful solution.

Davis's parody of logical rigor is an effort to appear quite unfictional while also being a thoroughgoing bit of make-believe.

The logical rigour of his system is in evidence, for example, in McTaggart's famous attempted proof of the unreality of time.

His application of classical thought, logical rigor and literary criticism to Jewish texts foreshadowed and shaped the rationality Stark attributes to Christian thinkers.

Temporarily forgetting that yoga is a spiritual discipline and that spiritual disciplines are not known for logical rigor, I tried it.

The application of logical scientific rigor and form to basically irrational premises.

Steven E. Landsburg continues to astound by insisting that logical rigor requires binary choices.