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| Mirrors > Home > ILE Home > Th. List > ioorebasg | GIF version | ||
| Description: Open intervals are elements of the set of all open intervals. (Contributed by Jim Kingdon, 4-Apr-2020.) |
| Ref | Expression |
|---|---|
| ioorebasg | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴(,)𝐵) ∈ ran (,)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ioof 10300 | . . 3 ⊢ (,):(ℝ* × ℝ*)⟶𝒫 ℝ | |
| 2 | ffn 5507 | . . 3 ⊢ ((,):(ℝ* × ℝ*)⟶𝒫 ℝ → (,) Fn (ℝ* × ℝ*)) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (,) Fn (ℝ* × ℝ*) |
| 4 | fnovrn 6201 | . 2 ⊢ (((,) Fn (ℝ* × ℝ*) ∧ 𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴(,)𝐵) ∈ ran (,)) | |
| 5 | 3, 4 | mp3an1 1361 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴(,)𝐵) ∈ ran (,)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2203 𝒫 cpw 3668 × cxp 4746 ran crn 4749 Fn wfn 5346 ⟶wf 5347 (class class class)co 6049 ℝcr 8122 ℝ*cxr 8303 (,)cioo 10217 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2205 ax-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 ax-setind 4658 ax-cnex 8214 ax-resscn 8215 ax-pre-ltirr 8235 ax-pre-ltwlin 8236 ax-pre-lttrn 8237 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2814 df-sbc 3042 df-csb 3138 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-iun 3992 df-br 4109 df-opab 4171 df-mpt 4172 df-id 4413 df-po 4416 df-iso 4417 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-rn 4759 df-res 4760 df-ima 4761 df-iota 5311 df-fun 5353 df-fn 5354 df-f 5355 df-fv 5359 df-ov 6052 df-oprab 6053 df-mpo 6054 df-1st 6333 df-2nd 6334 df-pnf 8306 df-mnf 8307 df-xr 8308 df-ltxr 8309 df-le 8310 df-ioo 10221 |
| This theorem is referenced by: iooretopg 15380 blssioo 15405 tgioo 15406 |
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