 The Aczél–Alsina t-norm formula_25 for 0 < "p" < +∞ arises from the product t-norm by raising its additive generator to the power of "p".An additive generator of formula_25 for 0 < "p" < +∞ is

The family of "Dombi t-norms", introduced by József Dombi (1982), is given for 0 ≤ "p" ≤ +∞ by

The Dombi t-norm formula_30 is strict if and only if 0 < "p" < +∞ (for "p" = 1 it is the Hamacher product).The family is strictly increasing and continuous with respect to "p".