Answer:
Analogical deduction.
Step-by-step explanation:
Analogical deduction is an explicit representation of analogical reasoning that uses accepted similarities between systems to conclude that further similarities exists between the two systems. Analogical reasoning is the logical way that humans think.
In the give instance thing A shares some common properties with thing B. That is they both have properties P1, P2, P3. In addition thing A has P4.
Because if the shared traits between the two activities it can be concluded the thing B also has P4.