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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 4051 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 18345 | . . 3 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) → (𝑋 < 𝑌 ↔ (𝑋 ≤ 𝑌 ∧ 𝑋 ≠ 𝑌))) |
| 4 | 3 | simprbda 502 | . 2 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) ∧ 𝑋 < 𝑌) → 𝑋 ≤ 𝑌) |
| 5 | 4 | ex 416 | 1 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐶) → (𝑋 < 𝑌 → 𝑋 ≤ 𝑌)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ w3a 1097 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 class class class wbr 5099 ‘cfv 6517 lecple 17276 ltcplt 18323 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pr 5389 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5540 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-iota 6473 df-fun 6519 df-fv 6525 df-plt 18343 |
| This theorem is referenced by: pleval2 18350 pltnlt 18353 pltn2lp 18354 plttr 18355 pospo 18358 ogrpaddlt 20161 orngsqr 20895 ornglmullt 20898 orngrmullt 20899 isarchi3 33328 archirngz 33330 archiabllem2a 33335 atnlt 39901 cvlcvr1 39927 hlrelat 39990 hlrelat3 40000 cvratlem 40009 atltcvr 40023 atlelt 40026 llnnlt 40111 lplnnle2at 40129 lplnnlt 40153 lvolnle3at 40170 lvolnltN 40206 cdlemblem 40381 cdlemb 40382 lhpexle1 40596 |
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