Can't use non-numeric string as operand of "&&" in rule

Thanks for your help. I've applied but does not work:

• when HTTP_REQUEST {
• set uri [string tolower [HTTP::uri] ]
• /_hst name and ?_hst=1 parameter triggers client cert renegotiation
• if { !($renegtried) and ([SSL::cert count] == 0)
• and (([HTTP::uri] equals "/extern/test.jsp") or ([HTTP::uri] equal "/SO/services/dat") or * ([HTTP::uri] equal "/test/services/Tasacion") or [(HTTP::uri] equal "/Ex/services/pay"))
• } {
• log local0. "[IP::client_addr]:[TCP::client_port]: A log entry"
• HTTP::collect
• SSL::cert mode request
• SSL::renegotiate
• }
• }
• The error is this:
• :01070151:3: Rule [/Common/SSL_Test] error: /Common/Common/SSL_Test:12: error: [parse error: PARSE syntax 465 {syntax error in expression "!($renegtried)and ([SSL::cert count] == 0)and ...": variable references require preceding $}][{!($renegtried)and ([SSL::cert count] == 0)and (([HTTP::uri] equals "/extern/test.jsp") or ([HTTP::uri] equal "/SO/services/dat") or ([HTTP::uri] equal "/test/services/Tasacion") or [(HTTP::uri] equal "/Ex/services/pay"))}]