Sublime
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The idea of logic is to have clear rules so that conclusions can be drawn unambiguously and consistently by different people.
Eugenia Cheng • The Art of Logic
encapsulate the most important building block of logical arguments: logical implication.
Eugenia Cheng • The Art of Logic
Logical truth, in other words, is founded upon ontological truth.
D.Q. McInerny • Being Logical
truth of the premises logically (on pain of contradiction) requires the truth of the conclusion.
Gary Gutting • What Philosophy Can Do
that is, in such a way that it would be contradictory for the premises to be true and the conclusion not to be true.
Michael Huemer • Knowledge, Reality, and Value: A Mostly Common Sense Guide to Philosophy
Truth has two basic forms. There is “ontological” truth and “logical” truth. Of these two, ontological truth is the more basic. By ontological truth we refer to the truth of being or existence. Something is said to be ontologically true, then, if it actually exists; it has real being.
D.Q. McInerny • Being Logical
truth of the premises logically (on pain of contradiction) requires the truth of the conclusion.
Gary Gutting • What Philosophy Can Do
According to the rules of reason, a given conclusion is to be deemed true if, and only if, it flows from a logical sequence of thoughts founded on sound initial premises. Considering mathematics to be the model of good thinking, philosophers began to search for an approximation of its objective certainties in ethical life too.
Alain de Botton • Status Anxiety (NON-FICTION)
