Reply To: Chillul Shabbos?

I also learned learned Beyah and in effect it was my first mesachta and my Bar Mitzva pashetel was on tevilas kelim. When it comes to psak we pasken both like Rabbah and Rav Nachman that Yom Tov by muktza is more stringent. In Pesachim 46 Rabbah’s view is hoil when by hachana, preparing from Yom Tov to Shabbos even for a week day there is no malkus and cooking from Yom Tov to Shabbos is mutar biblically but requiring Eruv tavshilin to remove the rabbinical prohibition. Hoil makes a small need for mitoch. So if one can eat the food on the Yom Tov or have a guest, one can cook for the next day Yom Tov. Similarly, if one can use the siddur for shabbos and no hachana exists.