• Statement Operator
    • Conjunction
      • P•Q
      • conjunct and conjunction
      • logical meaning of the operator is that both conjuncts are true
        • “however, but” are also conjunction operators
      • compound subject and compound predicate
        • can express conjunction
    • Negation
      • the negated statement
    • Disjunction
    • Conditional

That means even if but and however convey different psychological import, nevertheless they have the same logical meaning and it is that both conjuncts are true.