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| Mirrors > Home > MPE Home > Th. List > relelrni | Structured version Visualization version GIF version | ||
| Description: The second argument of a binary relation belongs to its range. (Contributed by NM, 28-Apr-2015.) |
| Ref | Expression |
|---|---|
| releldm.1 | ⊢ Rel 𝑅 |
| Ref | Expression |
|---|---|
| relelrni | ⊢ (𝐴𝑅𝐵 → 𝐵 ∈ ran 𝑅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | releldm.1 | . 2 ⊢ Rel 𝑅 | |
| 2 | relelrn 5928 | . 2 ⊢ ((Rel 𝑅 ∧ 𝐴𝑅𝐵) → 𝐵 ∈ ran 𝑅) | |
| 3 | 1, 2 | mpan 703 | 1 ⊢ (𝐴𝑅𝐵 → 𝐵 ∈ ran 𝑅) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 class class class wbr 5102 ran crn 5652 Rel wrel 5656 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-pr 5391 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-br 5103 df-opab 5167 df-xp 5657 df-rel 5658 df-cnv 5659 df-dm 5661 df-rn 5662 |
| This theorem is used by: fpwwe2lem11 10733 lern 18774 brres2 39342 presuc 39567 brfvrcld2 44829 |
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