Logical
131logical form — The logical form of a sentence is the structure, shareable with other sentences, responsible for its powers in inferences. That is, its logical form determines the way in which it can be validly deduced from other sentences, and the way other… …
132Logical symbols — Reading logical symbolism frightens many people more than it should. The very term symbolic logic sounds terrifying, and the presence of even a small amount of symbolism may deter many readers from otherwise perfectly intelligible texts. The… …
