[GAP Forum] unexpected behavior of SchurCoverOfSymmetricGroup

[Benjamin Sambale]

Dear all,

the command SchurCoverOfSymmetricGroup can be used to define the two 
double covers of a symmetric group. According to the manual:

"+1 gives a group where the preimage of an adjacent transposition 
(i,i+1) has order 4"

I thought that the convention is just the other way around: in the "+" 
type cover the transpositions lift to involutions.

Best wishes,
Benjamin