Mechanical analog of Deductive Reasoning

Mechanical analog of Deductive Reasoning : 

Consider a machine with several parts working interconnectedly in tandem with each other.

If a part of that machine can be replaced by another piece then that piece plays all the roles in the working of the machine - with the others, and as a whole - which the initial part was playing. 

E.g. - Flowers have stamen

          Rose is a flower

          So rose has stamen.

A sentence can be seen as a machine with interconnected parts i.e. words; each playing a certain role, with others, in the production of meaning.