fallacy of composition

/F AE1 L AH0 S IY0 AH0 V K AA0 M P AH0 Z IH0 SH AH0 N/
noun
  1. 1

    A presumption that if something is true of part(s) of a whole, then it is true of the whole itself.

Source: https://en.wiktionary.org/wiki/fallacy%20of%20composition