- rp
- is a useful debugging tool, not currently called.
- p
- is a print routine of large integers in binary and logarithmic form.
- NSP
- is a creator of functional but insecure sealer-unsealer pairs.
- (desc k)
- generates (top . catalog), for a address space of 2
^{k}cells. “top” is the capability for all cells and will presumably be closely held by whoever calls desc. “catalog” is a function that returns any of a universally available set of values and functions.

- ((C 'within) b c)
- returns a bool indicating if all the cells available via b are available via c.
- ((C 'sub) b n)
- returns a new capability to a subset of capability b.
- ((C 'locate) b c)
- returns the range r of b within c if ((C 'within) b c). Otherwise it returns 0.
- ((C 'size) A)
- returns a power of 2 which is the smallest invalid index into capability A.
- (C 'zer)
- returns the null capability with no valid indexes.
- ((C 'zer?) A)
- iff A is the null capability.
- ((C 'eq?) A B)
- iff A and B are the same capability.

If 0≤n<(size A) then