1 To follow this, an irreducible minimum of biochemical knowledge is necessary.

2 This is the irreducible minimum Christians have always believed.

3 To have at least one sheep constituted an irreducible minimum, a sufficient condition for the activity to occur.

4 Expenditure on road repairs has been cut to an irreducible minimum.

5 From the point of view of demand management, therefore, frictional and structural unemployment is an irreducible minimum unemployment rate.

6 All parts are hard to wear, and the maintenance cost has been cut to an irreducible minimum. The working life can improve an advance of 30% in general.

7 Expenditure on road repair has been cut to an irreducible minimum.