Exercise 7.21 (Essential Prime Conjunctions). Detect all essential prime conjunctions based on the set of all prime conjunctions given in Fig. 7.7 a).

Practical tasks:

1 Load the final TVL system of Exercise 7.20.

2 Prepare a PRP that finds all essential prime conjunctions out of the set of all 14 prime conjunctions given as object number 15.

3 Apply the PRP of Task 2 and enumerate the found essential prime conjunctions.
4 Which cubes of the function f(x) given in Fig. 7.4

b) on page 172 are covered by the found essential prime conjunctions only.