floor {#1} \\right\\rfloor}", 1],
                    ceil:     [ "{\\left\\lceil {#1} \\right\\rceil}", 1],
                    abs:      [ "{\\left\\vert {#1} \\right\\vert}", 1],
                    powerset: [ "{\\wp\\left( {#1} \\right)}", 1],
                    suchthat: "{\\ \\vert \\ }",
                    cfgor:    "{\\ \\vert \\ }",
                    naturals: "{\\mathbb{N}}",
                    integers: "{\\mathbb{Z}}",
                    reals:    "{\\mathbb{R}}",
                    qed: