Should I give priority to the rightmost or the leftmost operator in this case?
In my textbook, it says that $p \implies q \implies r$ is equivalent to $$p \implies (q \implies r)$$ but, when I input in a online calculator such as this one: https://www.erpelstolz.at/gateway/formular-uk-zentral.html $$p \implies q \implies r$$
the resulting table truth is the same as the one for $$(p \implies q) \implies r$$
So, which one is wrong in this case?