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Mirrors > Home > MPE Home > Th. List > frn | Structured version Visualization version GIF version |
Description: The range of a mapping. (Contributed by NM, 3-Aug-1994.) |
Ref | Expression |
---|---|
frn | ⊢ (𝐹:𝐴⟶𝐵 → ran 𝐹 ⊆ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-f 6441 | . 2 ⊢ (𝐹:𝐴⟶𝐵 ↔ (𝐹 Fn 𝐴 ∧ ran 𝐹 ⊆ 𝐵)) | |
2 | 1 | simprbi 497 | 1 ⊢ (𝐹:𝐴⟶𝐵 → ran 𝐹 ⊆ 𝐵) |
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