Tran is trying to predict the 10th term in the mathematical series below:

10, 14, 18, 22, 26, …

He notices that each term is 4 larger than the previous term, and decides to generalize this pattern as $\displaystyle{6}+{4}{n}\usepackage{cmbright}\Huge\$ , where n = the term number. Substituting n=10 into this expression, he finds that the 10th term will be $\displaystyle{6}+{4}{\left({10}\right)}={46}\usepackage{cmbright}\Huge\$ .

Is he using deductive reasoning?