Let proposition P = you forgive people.
F = The heavenly Father forgives you.
Matthew 6:
⇒ F → P
The two verses together mean that F ⟷ P.
Therefore, the Father forgives you if and only if you forgive others.
F = The heavenly Father forgives you.
Matthew 6:
P → F14 For if you forgive other people when they sin against you, your heavenly Father will also forgive you.
¬P → ¬F15 But if you do not forgive others their sins, your Father will not forgive your sins.
⇒ F → P
The two verses together mean that F ⟷ P.
Therefore, the Father forgives you if and only if you forgive others.