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| Mirrors > Home > MPE Home > Th. List > i1frn | Structured version Visualization version GIF version | ||
| Description: A simple function has finite range. (Contributed by Mario Carneiro, 26-Jun-2014.) |
| Ref | Expression |
|---|---|
| i1frn | ⊢ (𝐹 ∈ dom ∫1 → ran 𝐹 ∈ Fin) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isi1f 26007 | . . 3 ⊢ (𝐹 ∈ dom ∫1 ↔ (𝐹 ∈ MblFn ∧ (𝐹:ℝ⟶ℝ ∧ ran 𝐹 ∈ Fin ∧ (vol‘(◡𝐹 “ (ℝ ∖ {0}))) ∈ ℝ))) | |
| 2 | 1 | simprbi 503 | . 2 ⊢ (𝐹 ∈ dom ∫1 → (𝐹:ℝ⟶ℝ ∧ ran 𝐹 ∈ Fin ∧ (vol‘(◡𝐹 “ (ℝ ∖ {0}))) ∈ ℝ)) |
| 3 | 2 | simp2d 1161 | 1 ⊢ (𝐹 ∈ dom ∫1 → ran 𝐹 ∈ Fin) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ w3a 1103 ∈ wcel 2146 ∖ cdif 4047 {csn 4587 ◡ccnv 5653 dom cdm 5654 ran crn 5655 “ cima 5657 ⟶wf 6542 ‘cfv 6546 Fincfn 8984 ℝcr 11209 0cc0 11210 volcvol 25796 MblFncmbf 25947 ∫1citg1 25948 |
| 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 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5251 ax-nul 5262 ax-pr 5394 |
| 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-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3416 df-v 3455 df-ss 3900 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-sn 4588 df-pr 4590 df-op 4838 df-uni 4870 df-br 5106 df-opab 5170 df-mpt 5189 df-id 5549 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-fv 6554 df-sum 15866 df-itg1 25953 |
| This theorem is used by: i1fima 26011 itg1cl 26018 itg1ge0 26019 i1fadd 26028 i1fmul 26029 itg1addlem4 26032 itg1addlem5 26033 i1fmulc 26036 itg1mulc 26037 i1fres 26038 itg10a 26043 itg1ge0a 26044 itg1climres 26047 itg2addnclem2 38730 ftc1anclem3 38753 ftc1anclem6 38756 ftc1anclem7 38757 ftc1anc 38759 |
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