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Mirrors > Home > MPE Home > Th. List > ifcl | Structured version Visualization version Unicode version |
Description: Membership (closure) of a conditional operator. (Contributed by NM, 4-Apr-2005.) |
Ref | Expression |
---|---|
ifcl |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eleq1 2689 |
. 2
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2 | eleq1 2689 |
. 2
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3 | 1, 2 | ifboth 4124 |
1
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