Construct a list of equations using And[]

Question

I have for instance the following list of equations:

{v1 - x1 - x2 == 0, 1 - E^-x2 + u == 0, v1 - v2 + x1 == 0}

I would like to obtain this:

v1 - x1 - x2 == 0 && 1 - E^-x2 + u == 0 && v1 - v2 + x1 == 0

How can I do this? I've tried:

And[{v1 - x1 - x2 == 0, 1 - E^-x2 + u == 0, v1 - v2 + x1 == 0}]

But it doesn't seem to work.

score 2 · Accepted Answer · answered Jan 24 '17 at 15:32

Try this:

{v1 - x1 - x2 == 0, 1 - E^-x2 + u == 0, v1 - v2 + x1 == 0} /. 
 List -> And

(* v1 - x1 - x2 == 0 && 1 - E^-x2 + u == 0 && v1 - v2 + x1 == 0  *)

or this:

And @@ {v1 - x1 - x2 == 0, 1 - E^-x2 + u == 0, v1 - v2 + x1 == 0}

v1 - x1 - x2 == 0 && 1 - E^-x2 + u == 0 && v1 - v2 + x1 == 0

Have fun!

1 Answers1