|Content: content is that part of a statement, what can be represented by another statement, which differs in a respect from the original statement, e.g. it uses other expressions with the same reference. That, in which the second statement deviates belongs then to the vocabulary, to the syntax or grammar, the matching can be called content._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.|
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Content/Geach: if two sentences (sentence constructions) UVW and UXY as a whole have the same content, it does not mean that U in UVW and U in UXY has the same meaning!
(5) All cats are mortal - is equivalent to the following two sentences:
(6) All cats are a subclass of mortals -
(7) All cats are the same class as some (subclasses of) mortals.
Each is as plausible as the other one, but they cannot both be correct, i.e. both are false._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution.
Logic Matters Oxford 1972