[Avodah] counting shegagos [was: Inviting Someone On Shabbos Who Uses the Eruv when, You Don't]

[David Riceman]

RYL:

<<May I invite a couple whom I know will wheel their baby in

a stroller to eat at my house on Shabbos?  They, of course, do rely
on the Flatbush eruv [at least one of them].>>

The only way your question makes sense to me is that:

i. You hold that by pushing the stroller they are violating an issur l'chol hadeios.

(Otherwise what's the problem, they hold that it's muttar and you are not their posek).

ii. You can't convince them of that.  Hence they are shog'gim.

(If they were m'zidim you would ask about inviting mumrim l'hillul shabbos).

iii. In the absence of your invitation they would never go out with a stroller on Shabbos.

(Otherwise all of their outings combine into one sh'gagah).

But in that case how do you know that they use the stroller on Shabbos?

David Riceman