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Doubt in EL
referring to EL in HFSJ(page no. 395), it is given that, "In logical expressions, EL treats the unknown variable as "false".
The example given for this is:

${7 < foo} false

according to this, it will get evaluated as

${7 < false}

How would you compare this ???

Another example given is

${true and foo} false

It wil get evaluated as

${true and false} false

This is OK.

But wht about the previous one ?

For unknown variables, in numeric comparisions it is treated as 0.

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