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| Mirrors > Home > MPE Home > Th. List > elrnmptd | Structured version Visualization version GIF version | ||
| Description: The range of a function in maps-to notation. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
| Ref | Expression |
|---|---|
| elrnmptd.f | ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) |
| elrnmptd.x | ⊢ (𝜑 → ∃𝑥 ∈ 𝐴 𝐶 = 𝐵) |
| elrnmptd.c | ⊢ (𝜑 → 𝐶 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| elrnmptd | ⊢ (𝜑 → 𝐶 ∈ ran 𝐹) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrnmptd.x | . 2 ⊢ (𝜑 → ∃𝑥 ∈ 𝐴 𝐶 = 𝐵) | |
| 2 | elrnmptd.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ 𝑉) | |
| 3 | elrnmptd.f | . . . 4 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
| 4 | 3 | elrnmpt 5905 | . . 3 ⊢ (𝐶 ∈ 𝑉 → (𝐶 ∈ ran 𝐹 ↔ ∃𝑥 ∈ 𝐴 𝐶 = 𝐵)) |
| 5 | 2, 4 | syl 17 | . 2 ⊢ (𝜑 → (𝐶 ∈ ran 𝐹 ↔ ∃𝑥 ∈ 𝐴 𝐶 = 𝐵)) |
| 6 | 1, 5 | mpbird 257 | 1 ⊢ (𝜑 → 𝐶 ∈ ran 𝐹) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1541 ∈ wcel 2113 ∃wrex 3058 ↦ cmpt 5177 ran crn 5623 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2706 ax-sep 5239 ax-nul 5249 ax-pr 5375 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2809 df-nfc 2883 df-rex 3059 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-br 5097 df-opab 5159 df-mpt 5178 df-cnv 5630 df-dm 5632 df-rn 5633 |
| This theorem is referenced by: pwfilem 9216 evls1maprnss 22320 elrgspnlem1 33273 elrgspnlem2 33274 elrgspnlem3 33275 nsgmgc 33442 nsgqusf1olem1 33443 algextdeglem4 33826 zarclsun 33976 rnmptssrn 45368 infnsuprnmpt 45436 supminfrnmpt 45631 supminfxrrnmpt 45657 sge0sup 46577 sge0resplit 46592 sge0xaddlem2 46620 sge0pnfmpt 46631 sge0reuz 46633 sge0reuzb 46634 hoidmvlelem2 46782 |
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