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| Mirrors > Home > MPE Home > Th. List > pltle | Structured version Visualization version GIF version | ||
| Description: "Less than" implies "less than or equal to". (pssss 4048 analog.) (Contributed by NM, 4-Dec-2011.) |
| Ref | Expression |
|---|---|
| pltval.l | ⊢ ≤ = (le‘𝐾) |
| pltval.s | ⊢ < = (lt‘𝐾) |
| Ref | Expression |
|---|---|
| pltle | ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) → (𝑋 < 𝑌 → 𝑋 ≤ 𝑌)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pltval.l | . . . 4 ⊢ ≤ = (le‘𝐾) | |
| 2 | pltval.s | . . . 4 ⊢ < = (lt‘𝐾) | |
| 3 | 1, 2 | pltval 18233 | . . 3 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) → (𝑋 < 𝑌 ↔ (𝑋 ≤ 𝑌 ∧ 𝑋 ≠ 𝑌))) |
| 4 | 3 | simprbda 498 | . 2 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) ∧ 𝑋 < 𝑌) → 𝑋 ≤ 𝑌) |
| 5 | 4 | ex 412 | 1 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) → (𝑋 < 𝑌 → 𝑋 ≤ 𝑌)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ w3a 1086 = wceq 1541 ∈ wcel 2111 ≠ wne 2928 class class class wbr 5091 ‘cfv 6481 lecple 17165 ltcplt 18211 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5234 ax-nul 5244 ax-pr 5370 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-rab 3396 df-v 3438 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4476 df-sn 4577 df-pr 4579 df-op 4583 df-uni 4860 df-br 5092 df-opab 5154 df-mpt 5173 df-id 5511 df-xp 5622 df-rel 5623 df-cnv 5624 df-co 5625 df-dm 5626 df-iota 6437 df-fun 6483 df-fv 6489 df-plt 18231 |
| This theorem is referenced by: pleval2 18238 pltnlt 18241 pltn2lp 18242 plttr 18243 pospo 18246 ogrpaddlt 20048 orngsqr 20779 ornglmullt 20782 orngrmullt 20783 isarchi3 33151 archirngz 33153 archiabllem2a 33158 atnlt 39351 cvlcvr1 39377 hlrelat 39440 hlrelat3 39450 cvratlem 39459 atltcvr 39473 atlelt 39476 llnnlt 39561 lplnnle2at 39579 lplnnlt 39603 lvolnle3at 39620 lvolnltN 39656 cdlemblem 39831 cdlemb 39832 lhpexle1 40046 |
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