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Mirrors > Home > MPE Home > Th. List > ifcld | Unicode version |
Description: Membership (closure) of a conditional operator, deduction form. (Contributed by SO, 16-Jul-2018.) |
Ref | Expression |
---|---|
ifcld.a | |
ifcld.b |
Ref | Expression |
---|---|
ifcld |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ifcld.a | . 2 | |
2 | ifcld.b | . 2 | |
3 | ifcl 3983 | . 2 | |
4 | 1, 2, 3 | syl2anc 661 | 1 |
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