• The Laws of Logic
• Jesus' claims about Himself are true
• The Classical Christian faith is true
• The Bible is authoritative

• The Trinity itself is self-consistent
• Trinity best represents all of the evidence and facts we have about God
• If the above is true, Essential Trinitarianism is true

∴ Essential Trinitarianism is true

• There is one God
• The Father is God
• The Son is God
• The Spirit is God
• x the Father is the Son
• x the Son is the Spirit
• x the Spirit is the Father

Essential Trinitarianism is true

What assumptions are needed here? The inerrancy of the Bible is helpful, but is it necessary to even hold the conversation?