Summary
- back to build_polyml_component according to 54c6ec4166a4 (amending 808e6ddb5a50);
- reactivated unfinished tool (cf. a3a847c4fbdb);
- tuned whitespace;
- clarified meta_digest;
- tuned;
- added isablle build option -f;
- canonical multiplicative euclidean size
- clarified parity
- clarified uniqueness criterion for euclidean rings
- tuned proofs
- tuned imports