Set: pp::colors
Set: pp::unicode
Imported 'int'
Assumed: g
Assumed: a
Assumed: b
Assumed: H1
Assumed: H2
Proved: T1
Axiom H2 : g a > 0
Theorem T1 : g b > 0 := SubstP (λ x : ℤ, g x > 0) H2 H1