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Hi, I'd like to check if the operation applied to an equation yields the solution as follow: a=var('a') eq= a+7==6

print eq.lhs()
LHS =(eq-7).lhs()
print LHS
LHS==a

I was waiting that the last line yields True or False. How can I check that LHS contains the variable a?

Hi, I'd like to check if the operation applied to an equation yields the solution as follow: a=var('a') eq= a+7==6

print eq.lhs()
LHS =(eq-7).lhs()
print LHS
LHS==a
a is a
LHS is a

I was waiting that the last line yields True or False. How can I check that LHS contains the variable a?? edit LHS is a yields False

Hi, I'd like to check if the operation applied to an equation yields the solution as follow: a=var('a') eq= a+7==6

print eq.lhs()
LHS =(eq-7).lhs()
print LHS
LHS==a
a is a
LHS is a

I was waiting that the last line yields True or False. How can I check that LHS contains the variable a? ?

edit

LHS `LHS is aa`
 

yields False

Hi, I'd like to check if the operation applied to an equation yields the solution as follow: a=var('a') eq= a+7==6

print eq.lhs()
LHS =(eq-7).lhs()
print LHS
LHS==a
a is a
LHS is a

I was waiting that the last line LHS==a yields True or False. How can I check that LHS contains the variable a?

edit

`LHS is a`

yields False