Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > ple1 | Structured version Visualization version GIF version |
Description: Any element is less than or equal to a poset's upper bound (if defined). (Contributed by NM, 22-Oct-2011.) (Revised by NM, 13-Sep-2018.) |
Ref | Expression |
---|---|
ple1.b | ⊢ 𝐵 = (Base‘𝐾) |
ple1.u | ⊢ 𝑈 = (lub‘𝐾) |
ple1.l | ⊢ ≤ = (le‘𝐾) |
ple1.1 | ⊢ 1 = (1.‘𝐾) |
ple1.k | ⊢ (𝜑 → 𝐾 ∈ 𝑉) |
ple1.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
ple1.d | ⊢ (𝜑 → 𝐵 ∈ dom 𝑈) |
Ref | Expression |
---|---|
ple1 | ⊢ (𝜑 → 𝑋 ≤ 1 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ple1.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
2 | ple1.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
3 | ple1.u | . . 3 ⊢ 𝑈 = (lub‘𝐾) | |
4 | ple1.k | . . 3 ⊢ (𝜑 → 𝐾 ∈ 𝑉) | |
5 | ple1.d | . . 3 ⊢ (𝜑 → 𝐵 ∈ dom 𝑈) | |
6 | ple1.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
7 | 1, 2, 3, 4, 5, 6 | luble 18077 | . 2 ⊢ (𝜑 → 𝑋 ≤ (𝑈‘𝐵)) |
8 | ple1.1 | . . . 4 ⊢ 1 = (1.‘𝐾) | |
9 | 1, 3, 8 | p1val 18146 | . . 3 ⊢ (𝐾 ∈ 𝑉 → 1 = (𝑈‘𝐵)) |
10 | 4, 9 | syl 17 | . 2 ⊢ (𝜑 → 1 = (𝑈‘𝐵)) |
11 | 7, 10 | breqtrrd 5102 | 1 ⊢ (𝜑 → 𝑋 ≤ 1 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2106 class class class wbr 5074 dom cdm 5589 ‘cfv 6433 Basecbs 16912 lecple 16969 lubclub 18027 1.cp1 18142 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-id 5489 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-lub 18064 df-p1 18144 |
This theorem is referenced by: ople1 37205 lhp2lt 38015 |
Copyright terms: Public domain | W3C validator |