Assignment:
Transcribe the English argument below into an appropriate logical language adequate to determine it to be valid. Also, please provide a derivation of the conclusion from the premises within the same logical system (by which you transcribed it). This seems to be predicate logic and probably requires universal and existential quantifier. For universal use (X). Existential, use (E).
Every mental state is identical with some brain state or other. All mental states are introspectable. There is at least one mental state. Hence, some brain state is introspectable.
Provide complete and step by step solution for the question and show calculations and use formulas.