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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 |
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Ref | Expression |
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cbvrexv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfv 1528 |
. 2
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2 | nfv 1528 |
. 2
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3 | cbvralv.1 |
. 2
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4 | 1, 2, 3 | cbvrex 2700 |
1
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