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Mirrors > Home > MPE Home > Th. List > pltne | Structured version Visualization version GIF version |
Description: The "less than" relation is not reflexive. (df-pss 3878 analog.) (Contributed by NM, 2-Dec-2011.) |
Ref | Expression |
---|---|
pltne.s | ⊢ < = (lt‘𝐾) |
Ref | Expression |
---|---|
pltne | ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) → (𝑋 < 𝑌 → 𝑋 ≠ 𝑌)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2759 | . . . 4 ⊢ (le‘𝐾) = (le‘𝐾) | |
2 | pltne.s | . . . 4 ⊢ < = (lt‘𝐾) | |
3 | 1, 2 | pltval 17637 | . . 3 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) → (𝑋 < 𝑌 ↔ (𝑋(le‘𝐾)𝑌 ∧ 𝑋 ≠ 𝑌))) |
4 | 3 | simplbda 504 | . 2 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) ∧ 𝑋 < 𝑌) → 𝑋 ≠ 𝑌) |
5 | 4 | ex 417 | 1 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) → (𝑋 < 𝑌 → 𝑋 ≠ 𝑌)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1085 = wceq 1539 ∈ wcel 2112 ≠ wne 2952 class class class wbr 5033 ‘cfv 6336 lecple 16631 ltcplt 17618 |
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 1912 ax-6 1971 ax-7 2016 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2159 ax-12 2176 ax-ext 2730 ax-sep 5170 ax-nul 5177 ax-pr 5299 |
This theorem depends on definitions: df-bi 210 df-an 401 df-or 846 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2071 df-mo 2558 df-eu 2589 df-clab 2737 df-cleq 2751 df-clel 2831 df-nfc 2902 df-ne 2953 df-ral 3076 df-rex 3077 df-rab 3080 df-v 3412 df-sbc 3698 df-dif 3862 df-un 3864 df-in 3866 df-ss 3876 df-nul 4227 df-if 4422 df-sn 4524 df-pr 4526 df-op 4530 df-uni 4800 df-br 5034 df-opab 5096 df-mpt 5114 df-id 5431 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-iota 6295 df-fun 6338 df-fv 6344 df-plt 17635 |
This theorem is referenced by: pltirr 17640 ogrpaddlt 30870 ornglmullt 31033 orngrmullt 31034 ofldchr 31040 isarchiofld 31043 atlen0 36887 1cvratex 37050 ps-2 37055 lhpn0 37581 |
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