• The Laws of Logic
• Christianity's distinctive, characteristic beliefs

This has been flagged as an appeal to authority. Before removing this flag, ensure the reasoning is based on the evidence the authority had, not the authority itself.

• The ecumenical councils held the position that the Father is not the Son
• The positions of the ecumenical councils have stood up to scrutiny for 2,000 years
• If the positions have stood up to scrutiny for 2,000 years, they are true
• If the above is true, x the Father is the Son

∴ x the Father is the Son

Niceno-Constantinopolitan Creed

the Father is the Son