Arbran mathic philosophy of Protas, corresponding to Platonism or, more specifically, Platonic realism. Protism states that the Hylaean Theoric World is the domain of cnoöns - pure geometric forms, theorems and ideas, and that theors in the Arbran Causal Domain are influenced by their perception of such cnoöns. The movement of pure ideas from the Hylaean Theoric World is called Hylaean flow. The concept is illustrated in Calca 3: Complex Versus Simple Protism.