Combining EL Expressions

Summary:

Need to combine EL Expressions for more than 1 condition.

Content (required):

I need to combine below two EL expressions:

#{( pageFlowScope.pTaskCode == 'WSEVAL' and (pageFlowScope.pCustomaryName == 'Performance Document1')) ? false : true}

#{( pageFlowScope.pTaskCode == 'WSEVAL' and (pageFlowScope.pCustomaryName == 'Performance Document2')) ? false : true}

I tried below but it doesnt work:

#{( pageFlowScope.pTaskCode == 'WSEVAL' and ((pageFlowScope.pCustomaryName == 'Performance Document1') and (pageFlowScope.pCustomaryName == 'Performance Document2'))) ? false : true}

Can anyone please suggest?

Version (include the version you are using, if applicable):

23A

Code Snippet (add any code snippets that support your topic, if applicable):