[tryton] operand or in Eval

[Carla Klaus]

Hello,

What is the operand for 'or' in Eval? I tried '|' and 'or'.

I saw in 
https://groups.google.com/forum/#!searchin/tryton/two/tryton/r2yCxfM8MQA/CJWcw8CCBOMJ
 
that for and is '&'.

Thx,

Carla