[ true \Rightarrow i
| false \Rightarrow n]].
-notation < "(❲i↹j❳)n" with precedence 71
+notation < "(❲i↹j❳) term 72 n" with precedence 71
for @{ 'transposition $i $j $n}.
-notation < "(❲i \atop j❳)n" with precedence 71
+notation < "(❲i \atop j❳) term 72 n" with precedence 71
+for @{ 'transposition $i $j $n}.
+
+notation > "(❲\frac term 90 i term 90 j❳)n" with precedence 71
for @{ 'transposition $i $j $n}.
interpretation "natural transposition" 'transposition i j n = (transpose i j n).
]
]
]
-qed.
\ No newline at end of file
+qed.