Checking equivilence of equalities



Hi,

First of all, I am new on this list -- thanks for your CAS system, I
use it a lot for my studies.

I have a couple of questions regarding maxima that I will ask in
separate threads to avoid confusion.

Is there a way of checking equivalence of two equalities in maxima. Eg:

a = 1 and a - 1 = 0 are equivalent.

Looking at the manual, equal() looks like a goo bet, however:
`is(equal(a=1, a-1=0)` is false.

It looks like equal() deals only with expressions and not equalities?

I could make the equalities of the form `0 = <expr>` and then perform
`equal(rhs(e), rhs(e2))` ?

Cheers

-- 
Best Regards
Edd Barrett

http://www.theunixzoo.co.uk