Does 'Note that the work in a shirt plant is generally grouped into production lots of 1,500 shirts if the progressive bundle system is used.' provide a contradiction to the established premise 'The progressive bundle system means work is generally grouped into production lots of 20,000 shirts or more.'
Note that the work in a shirt plant is generally grouped into production lots of 1,500 shirts if the progressive bundle system is used.###The progressive bundle system means work is generally grouped into production lots of 20,000 shirts or more.