⊤
ψ only if φ
not both
φ and ψ
not ψ
ψ if φ
not φ
φ if and
only if ψ
neither
φ nor ψ
ψ unless φ
φ
φ or ψ
but not
both
φ but not ψ
ψ
φ and ψ
ψ but not φ
⊥