solve([x==0, 1-exp(y)==0],x,y)
returns the empty set, although (0,0) is an obvious solution. This
occurs also for other simple combinations involving exp, as well as
for
solve([y*sin(x)==0, cos(x)==0],x,y)

What am I doing wrong? Thanks. (Sage 3.0.2 on Mac OSX)
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