The author was pointing out, the judgment reasoning has logicality, realistic sense, and it is an action of proof, it's subject is an judge. 判决推理的主体限于法官,它是法官围绕判决活动而进行的逻辑思维活动,是一种实践推理,是一种寻求判决理由正当性与合理性的证明活动。
The onus of proof lies with you. 你有责任提供证据。
Is your statement susceptible of proof? 你的说法能加以证实吗?
The action of the strikers was unjustified. 罢工者的行为是不合理的。
The action of salt on ice causes it to melt. 盐作用於冰而使其融化。