因明入正理論疏 1.66

1.66

問：「能立有多，何故一言說為能立？」答：「《理門》解云：『為顯總成一能立性，由此應知，隨有所闕，名能立過。』闕支便非能立性故。」

Question: "Since proofs are multiple, why is it stated in the singular as 'a proof'?" Answer: "The Nyāyamukha explains: 'To show that they collectively constitute the single nature of a proof; from this it should be known that whatever [member] is deficient is called a fallacy of the proof.' This is because lacking a member means it is not of the nature of a proof."