are evaluates as True if the left hand expression equals the right hand expression. It is a synonym for ‘is‘ that may be used to create more natural sounding conditions where the left hand expression is plural.
Similarly are not evaluates as True if the left hand expression does NOT equal the right hand expression.
For example, given the following case fragment,
05 Feb 03 06 Oct 03 07 Nov 03 HDL [2, 5.5] 7.3* 5.6* 6.1* LDL 1.1 0.8 pending Trig 3.6 Notes 1st note 2nd note 3rd note
all HDL are high
all HDL is high
all LDL are available
at least 2 Trig are not available