[Avodah] repeating shemonei esrei

[Eli Turkel]

<<IOW, why do we repeat?

1- Is it that these things have to be said, and since that requires an SE,
we repeat the whole SE?
In which case, everything necessary was already said, so there is no
need for the third repetition.

2- Or is it a pesul in the SE not to say everything coined for that
tefillah?
In which case, he has yet to say a complete SE, and needs to try yet
again.>>

It is a machkloket of 2 opinions in Tosafot. The question appears when
one forgets yaale veyovah eg rosh chodesh but the next tefilla is already
maariv after rosh chodesh. Does it pay to say maariv twice since in any case
one will not say yaale veyavoh.

The psak is to say an extra shemonei as a nedavah. However, if the makeup would
be on friday night when we dont say a tefilla nedava then one does not say
the makeup shemonei esre


-- 
Eli Turkel