* `[[n,equals2],[variable1,[variable2,variable3]]]` e.g. `[[n,equals2],[[v,a],["a","b"]]]` returns `[v,a]=["a","b"]`

* `[[n,equals3],[variable1,variable2]]` e.g. `[[n,equals3],[[v,a],[1,2,3]]]` returns `[v,a]=[1,2,3]`

* `[[n,wrap],[variable1,variable2]]` e.g. `[[n,wrap],["a",[v,b]]]` returns `[v,b]=["a"]`

* `[[n,unwrap],[variable1,variable2]]` e.g. `[[n,wrap],[["a"],[v,b]]]` returns `[v,b]="a"`

* `[[n,head],[variable1,variable2]]` e.g. `[[n,head],[["a","b","c"],[v,b]]]` returns `[v,b]="a"`

* `[[n,tail],[variable1,variable2]]` e.g. `[[n,tail],[["a","b","c"],[v,b]]]` returns `[v,b]=["b","c"]`

* `[[n,member],[Variable1,Variable2]]` e.g. `[[n,member],[[v,b],["a","b","c"]]]` returns `[v,b]="a"`, `[v,b]="b"` or `[v,b]="c"`, or e.g. `[[n,member],["c",["a","b","c"]]]` returns true. (Formerly member2).

* `[[n,delete],[variable1,variable2,variable3]]` e.g. `[[n,delete],[["a","b","b","c"],"b",[v,c]]]` returns `[v,c]=["a","c"]`