Question

What type of proof or argument form is this?:

A daughter tells her mother that she can live off of her trust and does not ever need a job. The daughter receives $3,000/month from her trust fund. The mother says "Okay, lets assume you have $3,000/month to live off of and and no other income." The mother then starts listing all of the expenses that the daughter would have each month, and reducing that $3,000/month by the amount of each expense (e.g., student loans, mortgage, health insurance, etc.). When the mother has finished listing the expenses, the $3,000 trust income is reduced to almost nothing.

Answer 1

The mother wishes to prove that her daughter cannot live off of her trust fund.

In her proof, she uses a straightforward combination of established facts to prove that her daughter will have nothing left at the end of the month if her only income is the $3000 she receives from her trust fund. Thus, her daughter will not be able to live off of her trust fund.

Since a straightforward combination of established facts is used to establish the proof, the proof is a direct proof.d