👉 In mathematics, "fermion" is a term used to describe fermions such as electrons and quarks. A fermion has a quantum number that determines its particle properties, which includes spin (spin up or down) and charge (parity). These particles are fundamental building blocks of matter and have significant applications in physics. In the context of quantum mechanics, a fermion is often denoted by Greek letters like "Φ", "Ψ", or "χ" for electron, positron,
