Hello everybody !!!

As usual, as I do not know how to report such bugs, I prefer to send
an email here and trust you :-)

I happened to type in sage :

var('i j k l p')
e=(2*i+s+t)/((i+s)*(i+t))<(2*i+q)/(i*(i+q))

This formula uses a variable i, which should be fine ( or clearly
forbidden ). Usually, everything I do with it is fine, but for some
functions like :
e.exp_simplify()

The result I get replaces the 'i' ( variable ) by the "complex" i ,
which is not fine for my computations :-)

besides, when I type :

e = c^2 < c^2

How can I have Sage simplify the expression by itself ? I have to call
manually e.subtract_from_both_sides ( note that it is written subtract
and not subStract ), which is not that painless sometimes... :-)

Thank you for your help !

Nathann

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