The difference between simple and complex

Hello Rabbi Michi,
In Sanhedrin, page 15. In studying the male quarter – as far as I understood the text, the Gemara there performs a two-stage study. First, we study the verse “everyone who lies with a beast” in the sense of “if it is not a matter” for lying down, and then we make a deduction between lying down and lying down in order to learn the number of the dayanim. Is there a deduction here between the plain meaning and the sermon of the verse? Between the word that is actually written and the word that we preached in “if it is not a matter”?
I just saw in a Talmudic encyclopedia that they bring up the "Yara-Yara" inference between the literal and the written form of the word, which is perhaps close to this point – but still not at the level of "if it is not a matter" that it is difficult to say that it simplifies the text in any way.
I heard an explanation that the inference is between the verse in Leviticus ("a man who will lay down his bed") and the verse in Exodus, but I remember hearing from a rabbi that the inference must be in the same verse or in the same matter in the Torah (for example, in adjacent verses or the same parasiah). How do I understand this teaching?