Does the triple divorce pronounced by the questioner's paternal uncle upon the questioner's mother take effect if he swore by triple divorce that the questioner would not go to work at the restaurant, and he went?

Scholars have differed concerning an oath sworn by divorce: whether it takes effect if the condition it is contingent upon occurs, or if it does not. The majority of scholars hold that it takes effect. Sheikh al-Islam Ibn Taymiyyah, however, chose the view that the divorce does not take effect if the one swearing the oath intends to prevent or deter, rather than to cause a divorce; in this case, an expiation for breaking an oath is required of him. There is also a difference of opinion regarding the occurrence of a triple divorce pronounced in a single utterance; the majority view is that the triple divorce takes effect with a single utterance. Based on this, your mother becomes unlawful to your uncle until she marries another husband, according to what the majority of scholars have deemed preponderant.