Nonsense and Meaning

The distinction between meaningful propositions (which picture possible states of affairs) and nonsensical ones (which arise from misuse of language or giving no meaning to signs), including the status of tautologies and contradictions.

The idea of an 'unlogical' world is shown to be nonsensical, as it attempts to say what cannot be coherently thought or expressed.

Wittgenstein distinguishes falsehood from nonsense when a complex does not exist, clarifying the boundaries of meaningful propositions.

The passage directly addresses when a sign becomes meaningless, tying necessity to meaningfulness.

The essential features of a proposition are what allow it to express a sense, distinguishing meaningful propositions from nonsense.