The sugya says noten ta'am lifgam is mutal with things that are assur, be ha'na'ah. What about tikrovet A"Z which has a more chamor issur?
Tuvya Marcus, Jerusalem
There is a similar question in Avodah Zarah 52a-b. The Gemara discusses whether or not Tikroves Avodah Zarah is Batel regarding Tumah, because it is never Batel regarding Avodah Zarah. The Gemara does not answer the question.
There is definitely a strong argument to make that, especially regarding eating, it is not Batel. See Shevet Ha'Levi 2:50 and Divrei Yatziv (E.H. 68) at length.
All the best,
Yaakov Montrose