| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > ioossico | Structured version Visualization version GIF version | ||
| Description: An open interval is a subset of its closure-below. (Contributed by Thierry Arnoux, 3-Mar-2017.) |
| Ref | Expression |
|---|---|
| ioossico | ⊢ (𝐴(,)𝐵) ⊆ (𝐴[,)𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ioo 13406 | . 2 ⊢ (,) = (𝑎 ∈ ℝ*, 𝑏 ∈ ℝ* ↦ {𝑥 ∈ ℝ* ∣ (𝑎 < 𝑥 ∧ 𝑥 < 𝑏)}) | |
| 2 | df-ico 13408 | . 2 ⊢ [,) = (𝑎 ∈ ℝ*, 𝑏 ∈ ℝ* ↦ {𝑥 ∈ ℝ* ∣ (𝑎 ≤ 𝑥 ∧ 𝑥 < 𝑏)}) | |
| 3 | xrltle 13204 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝑤 ∈ ℝ*) → (𝐴 < 𝑤 → 𝐴 ≤ 𝑤)) | |
| 4 | idd 25 | . 2 ⊢ ((𝑤 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝑤 < 𝐵 → 𝑤 < 𝐵)) | |
| 5 | 1, 2, 3, 4 | ixxssixx 13416 | 1 ⊢ (𝐴(,)𝐵) ⊆ (𝐴[,)𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∧ wa 401 ∈ wcel 2145 ⊆ wss 3902 class class class wbr 5107 (class class class)co 7417 ℝ*cxr 11270 < clt 11271 ≤ cle 11272 (,)cioo 13402 [,)cico 13404 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-cnex 11184 ax-resscn 11185 ax-pre-lttri 11202 ax-pre-lttrn 11203 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-opab 5172 df-mpt 5191 df-id 5554 df-po 5567 df-so 5568 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7420 df-oprab 7421 df-mpo 7422 df-er 8700 df-en 8957 df-dom 8958 df-sdom 8959 df-pnf 11273 df-mnf 11274 df-xr 11275 df-ltxr 11276 df-le 11277 df-ioo 13406 df-ico 13408 |
| This theorem is used by: elicoelioo 33257 esumdivc 34601 omssubadd 34819 rpsqrtcn 35109 icomnfinre 46390 uzubico 46404 uzubico2 46406 limcresioolb 46479 icocncflimc 46725 fourierdlem41 46984 fourierdlem46 46988 fouriersw 47067 ovolval5lem3 47490 ioosshoi 47505 vonioolem2 47517 amgmwlem 50828 |
| Copyright terms: Public domain | W3C validator |