I’ve been arguing with my dad about whether or not True and False are actually propositions themselves, and I’d be curious to hear your thoughts.
The definition of a proposition I’m seeing in most places is a declarative sentence which can have a value of either True or False, but never both.
This is probably getting into the nuances of language, but it seems to me that saying “True!” is pretty declarative (it certainly isn’t asking a question), and it can only result in a value of True, therefore not violating the second portion of the definition.
My dad, on the other hand, thinks it is not a proposition, because it’s lacking other features he associates with them, such as two separate ideas being linked (i.e. the sky is blue — the first idea is “the sky”, the second idea is “blue”, and the declaration/link is the word “is”).
Any insights would be appreciated!