पूर्वेण पश्चिमस्यानुपपत्तिर्व्याघातः ॥ कZ_०२.१०.५९ ॥
pūrveṇa paścimasyānupapattir vyāghātaḥ
पूर्वीच्या विधानाशी नंतरचे विधान न जुळणे—हा व्याघात (विरोध) होय.
It demands internal consistency: later clauses must not negate earlier clauses, otherwise the document becomes unenforceable or litigable.