dependent origination (pratītyasamutpāda) means

Nominalism

Nominalism claims only particular things exist, universals are just names

Śūnyatā

Śūnyatā means "emptiness" in Sanskrit

Phenomenology (philosophy)

Epoché brackets existence claims to study how things appear

the Upanishadic concept of Brahman-Atman identity claims

Brahman-Atman identity posits the individual self (Atman) is identical to ultimate reality (Brahman)

the Buddhist concept of anatta (no-self) claims

Anatta: No permanent, unchanging self exists

Principle of sufficient reason

Every contingent fact has a sufficient reason