如何证明：
∀x∈N+∧x>1∧p∈N+,xφ(p)+1>p\forall x \in \mathbb{N}^+ \wedge x >1 \wedge p \in \mathbb{N}^+,x^{\varphi(p)+1}>p∀x∈N+∧x>1∧p∈N+,xφ(p)+1>p
