If one prayed the full weekday Amidah on Shabbat without any mention of Shabbat, has he fulfilled his obligation?

Is Vayechulu recited during Maariv of Shabbat, and what is its status if omitted?

2 opinions

If one mistakenly began the weekday Amidah on Shabbat, must he stop immediately or finish the blessing he started?

5 opinions

If one mistakenly says 'Atah' (beginning of a weekday blessing) on Shabbat — must he complete the blessing of 'Atah Chonen'?

5 opinions

If one prayed the weekday Amidah on Shabbat without mentioning Shabbat, and then realized — must he repeat from the beginning or only from the Shabbat blessing?

2 opinions

If one mistakenly said one Shabbat Amidah in place of another (e.g., Shacharit instead of Minchah), must he repeat?

4 opinions

Is Vayechulu recited again after the Maariv Amidah, and must it be said standing?

3 opinions

Who recites the Magen Avot (one blessing that encapsulates seven) on Friday night, and may an individual say it?

4 opinions

Is Yom Tov (its prayers or content) mentioned within the Magen Avot blessing when Yom Tov falls on Shabbat?

2 opinions