Basic constructions on quantitative containers and quantitative polynomial functors, formalised in Idris2.

The main files are:

• QCont.idr - results on quantitative containers
• QPF.idr - partial formalisation of the section on quantitative polynomial functors
• Examples.idr - contains a few examples - lists, natural numbers and binary trees.

Checked with Idris 2, version 0.5.1-9b2811f26.