| ⊦ a[P0 ∧ P1](mk(rs, f, g)) ↔ a[P0](mk(rs, f, g)) ∧ a[P1](mk(rs, f, g)) |
⊦ a[P](mk(rs, f, g)) ↔ P(mk(rs, f)) ∧ (∀ r. r ∈ rs → g(r) = a)
⊦ ((P0 ∧ P1))(mk(rs, f)) ∧ (∀ r. r ∈ rs → g(r) = a) ↔ a[P0](mk(rs, f, g)) ∧ a[P1](mk(rs, f, g))
Used terms: g, f, rs, P0 ∧ P1, a