A statement that contradicts itself, i.e., a statement that claims that the same thing is true and that it is false at the same time and in the same senses of the terms.
A logical inconsistency among two or more elements or propositions.
The act of contradicting.
A proposition that is false for all values of its propositional variables or Boolean atoms.
A relation.
Reciprocal exchange of civilities, especially conversation between persons by means of letters.
Postal or other written communications.
An agreement of situations or objects with an expected outcome.
Newspaper or news stories.
A similarity between physical and spiritual things (e.g. light to wisdom, or warmth to love)