| 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 18318 | . 2 ⊢ (𝜑 → 𝑋 ≤ (𝑈‘𝐵)) |
| 8 | ple1.1 | . . . 4 ⊢ 1 = (1.‘𝐾) | |
| 9 | 1, 3, 8 | p1val 18387 | . . 3 ⊢ (𝐾 ∈ 𝑉 → 1 = (𝑈‘𝐵)) |
| 10 | 4, 9 | syl 17 | . 2 ⊢ (𝜑 → 1 = (𝑈‘𝐵)) |
| 11 | 7, 10 | breqtrrd 5114 | 1 ⊢ (𝜑 → 𝑋 ≤ 1 ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 class class class wbr 5086 dom cdm 5626 ‘cfv 6494 Basecbs 17174 lecple 17222 lubclub 18270 1.cp1 18383 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5304 ax-pr 5372 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5521 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-rn 5637 df-res 5638 df-ima 5639 df-iota 6450 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-riota 7319 df-lub 18305 df-p1 18385 |
| This theorem is referenced by: ople1 39657 lhp2lt 40467 |
| Copyright terms: Public domain | W3C validator |