Opposite t-structures

Example 6.3.5. If \(C\) admits a t-structure \((C_{\geq 0}, C_{\leq 0})\), then \(C\catop \) can be given the opposite t-structure, in which \((C\catop )_{\geq 0} := (C_{\leq 0})\catop \) and \((C\catop )_{\leq 0} := (C_{\geq 0})\catop \).