'7 = a number' does not mean the same thing as '7 is a number'. the equal sign also often differs in logic and in math. but if you use '=' to mean '7 if and only if a number', then you have a false statement, and '7 is a number' means something like '7 [has the property of being] a number'. there's no paradox in '1000 [has the property of being] a number' and '7 [has the property of being] a number'.
'7 = a number' does not mean the same thing as '7 is a number'. the equal sign also often differs in logic and in math. but if you use '=' to mean '7 if and only if a number', then you have a false statement, and '7 is a number' means something like '7 [has the property of being] a number'. there's no paradox in '1000 [has the property of being] a number' and '7 [has the property of being] a number'.
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