+A fermion is a fundamental [Particle](/wiki/particle) that makes up matter, characterized by its half-integer spin. It obeys [Pauli exclusion](/wiki/pauli_exclusion), preventing two identical fermions from occupying the same quantum state.
+## See also
+- [Boson](/wiki/boson)
+- [Spin](/wiki/spin)
+- [Quantum Mechanics](/wiki/quantum_mechanics)
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