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| Mirrors > Home > MPE Home > Th. List > ltmuldivs2d | Structured version Visualization version GIF version | ||
| Description: Surreal less-than relationship between division and multiplication. (Contributed by Scott Fenton, 16-Mar-2025.) |
| Ref | Expression |
|---|---|
| ltdivmulsd.1 | ⊢ (𝜑 → 𝐴 ∈ No) |
| ltdivmulsd.2 | ⊢ (𝜑 → 𝐵 ∈ No) |
| ltdivmulsd.3 | ⊢ (𝜑 → 𝐶 ∈ No) |
| ltdivmulsd.4 | ⊢ (𝜑 → 0s <s 𝐶) |
| Ref | Expression |
|---|---|
| ltmuldivs2d | ⊢ (𝜑 → ((𝐶 ·s 𝐴) <s 𝐵 ↔ 𝐴 <s (𝐵 /su 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltdivmulsd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ No) | |
| 2 | ltdivmulsd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ No) | |
| 3 | ltdivmulsd.3 | . 2 ⊢ (𝜑 → 𝐶 ∈ No) | |
| 4 | ltdivmulsd.4 | . 2 ⊢ (𝜑 → 0s <s 𝐶) | |
| 5 | 4 | gt0ne0sd 28220 | . . 3 ⊢ (𝜑 → 𝐶 ≠ 0s ) |
| 6 | 3, 5 | recsexd 28621 | . 2 ⊢ (𝜑 → ∃𝑥 ∈ No (𝐶 ·s 𝑥) = 1s ) |
| 7 | 1, 2, 3, 4, 6 | ltmuldivs2wd 28603 | 1 ⊢ (𝜑 → ((𝐶 ·s 𝐴) <s 𝐵 ↔ 𝐴 <s (𝐵 /su 𝐶))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∈ wcel 2146 class class class wbr 5106 (class class class)co 7430 Nocsur 28012 <s clts 28013 0s c0s 28206 ·s cmuls 28507 /su cdivs 28588 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7761 ax-dc 10537 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4839 df-ot 4862 df-uni 4871 df-int 4911 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-se 5609 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6311 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6501 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-om 7888 df-1st 8011 df-2nd 8012 df-frecs 8313 df-wrecs 8344 df-recs 8393 df-rdg 8432 df-1o 8490 df-2o 8491 df-oadd 8494 df-nadd 8689 df-no 28015 df-lts 28016 df-bday 28017 df-les 28117 df-slts 28159 df-cuts 28161 df-0s 28208 df-1s 28209 df-made 28228 df-old 28229 df-left 28231 df-right 28232 df-norec 28339 df-norec2 28350 df-adds 28361 df-negs 28422 df-subs 28423 df-muls 28508 df-divs 28589 |
| This theorem is used by: (None) |
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