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Mirrors > Home > MPE Home > Th. List > ovex | Structured version Visualization version GIF version |
Description: The result of an operation is a set. (Contributed by NM, 13-Mar-1995.) |
Ref | Expression |
---|---|
ovex | ⊢ (𝐴𝐹𝐵) ∈ V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ov 7258 | . 2 ⊢ (𝐴𝐹𝐵) = (𝐹‘〈𝐴, 𝐵〉) | |
2 | 1 | fvexi 6770 | 1 ⊢ (𝐴𝐹𝐵) ∈ V |
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