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Description: The range of a set is a set. Deduction version of rnexd . (Contributed by Thierry Arnoux, 14-Feb-2025)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | rnexd.1 | ||
| Assertion | rnexd |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rnexd.1 | ||
| 2 | rnexg | ||
| 3 | 1 2 | syl |