Jain tradition uses a distinctive fourfold approach to establish its theological and metaphysical claims, grounded in experience and disciplined inquiry:

• Pratyaksha (direct perception): Knowledge gained firsthand through careful, purified perception. This is the most immediate form of evidence and is trusted in Jain thought when a person reaches a highly refined state of awareness, such as kevala jnana (omniscience) attained by a liberated soul or a perfected monk.
• Anumana (inference): Logical reasoning from reliable observations. Inference helps infer general principles (like karma, the nature of jiva and ajiva, and the mechanics of bondage) from trusted, observable data and from established truths.
• Shabda (transmission/testimony): Reliable verbal testimony from trustworthy teachers, senior monks, and canonical scriptures. This is important in Jainism because many subtle truths are beyond ordinary perception and are transmitted through a chain of authentic teaching.
• Aptavatsa (vested or inferential knowledge from the world): Acknowledges that everyday experience and communal knowledge can point toward deeper, consistent truths, when interpreted through proper Jain epistemic methods.

Key doctrinal ideas that these evidences support:

• Anekantavada (many-sided reality): No single perspective fully captures truth; truth is multifaceted and must be approached from multiple viewpoints. This is why Jain philosophy emphasizes conditional predicates (syadvada) and careful qualification of statements.
• Syadvada (truth in conditional propositions): All claims are understood as sketches of truth under specific conditions, which helps reconcile apparent contradictions and supports a cautious, evidence-based approach to metaphysics.
• Karma and rebirth: The system of karma as a verifiable mechanism for how actions bind the soul and determine future lives is defended through a combination of scriptural testimony, observed ethical outcomes, and logical coherence within the Jain worldview.
• Jiva and ajiva: The fundamental categories of living substance (jiva) and non-living substance (ajiva) are established by scriptural tradition and are reconciled through reasoning and experience about consciousness, bondage, and liberation.
• Liberation (moksha): The path and goal are anchored in experiential realization and disciplined practice (asceticism, right knowledge, right belief, right conduct), supported by the authority of teachers and scriptures and the coherence of the metaphysical system.

Notes on differences:

• Digambara and Śvetāmbara traditions differ in some scriptural canons, the status of certain texts, and the interpretation of certain metaphysical details. Both share core epistemological methods (pratyaksha, anumana, shabda) and the central idea of gaining right knowledge to achieve liberation, but they may differ in emphasis and exact canonical sources.

If you’d like, I can summarize these ideas with exact Sanskrit terms and provide a brief, simple example of how anekantavada moderates a common metaphysical question.