t:
err[t]: .
(C):
(omit):
(comment):
X:
err[X]: .
Y:
err[Y]:
rXY:
X/Z:
err[X/Z]:
Y/Z:
err[Y/Z]:
X/Y:
err[X/Y]:
[X,Y]:
s[,Xi]:
s[,Yi]:
(C):
(omit):
(comment):
f:
X:
err[X]: .
(omit):
(comment):
X:
err[X]: .
(omit):
(comment):
X:
(omit):
(comment):