• B\skipx = ( {tt, ff}, {¬, ∧, ∨} )

  • eval B\skipx : TBoolB\skipx = {or → ∨, and → ∧, not → ¬}

  
  • N\skipx = ( \nat , {++ , + , ∗} )

  • eval N\skipx : TNatN\skipx = {S → ++ , mul → ∗, plus → +}


slide: Interpretations of Bool and Nat