Freedom from contradiction; the state of a system of axioms such that none of the propositions deduced from them are mutually contradictory.
Correspondence or compatibility.
Reliability or uniformity; the quality of being consistent.
The degree of viscosity of something.
Local coherence.
The quality of not making logical sense or of not being logically connected.
Something incoherent; something that does not make logical sense or is not logically connected.
Thinking or speech that is so disorganized that it is essentially inapprehensible to others.