ring variable 'a' reused as ring parameter: 'a' will still be a ring inside Singular

[seelisch]

ring a; ring A = (0,a), x, dp; A;

characteristic : 0 1 parameter : a minpoly : 0 number of vars : 1 block 1 : ordering dp : names x block 2 : ordering C

a;

characteristic : 32003 number of vars : 3 block 1 : ordering dp : names x y z block 2 : ordering C

[hannes]

This is correct: ordering of search for names (sketch)

1. singular variables (like ring a)
2. ring variables (like parameter a)
3. monomials

(see Misc. oddities)