  Supersymmetric states in M-theory are mapped after compactification to
perturbatively non-supersymmetric states in type IIA string theory, with the
supersymmetric parts being encoded in the non-perturbative section of the
string theory. An observer unable to recognise certain topological features of
string theory will not detect supersymmetry. Such relativity of symmetry can
also be derived in the context of Theorem 3 in ref. [11]. The tool of choice in
this context is the universal coefficient theorem linking cohomology theories
with coefficients that reveal respectively hide certain topological features.
As a consequence of these observations, it is shown that the same theorem is
capable of linking perturbative with non-perturbative string theoretical
domains. A discussion of inflow anomaly cancellation is also included in the
context of universal coefficient theorems.
