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| Mirrors > Home > ILE Home > Th. List > cbvrexv | Unicode version | ||
| Description: Change the bound variable of a restricted existential quantifier using implicit substitution. (Contributed by NM, 2-Jun-1998.) |
| Ref | Expression |
|---|---|
| cbvralv.1 |
|
| Ref | Expression |
|---|---|
| cbvrexv |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfv 1542 |
. 2
| |
| 2 | nfv 1542 |
. 2
| |
| 3 | cbvralv.1 |
. 2
| |
| 4 | 1, 2, 3 | cbvrex 2726 |
1
|
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