Theorem: LO.Modal.Standard.AxiomSet.Geach.D_def (Logic/Modal/Standard/Geach.lean)

State before:
α : Type u_1
Ax : AxiomSet α
⊢ 𝗴𝗲({ i := 0, j := 0, m := 1, n := 1 }) = 𝗗
Tactic:
aesop
State after:
no goals