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| Mirrors > Home > MPE Home > Th. List > ifcld | Structured version Visualization version 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 4130 |
. 2
| |
| 4 | 1, 2, 3 | syl2anc 693 |
1
|
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