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| Mirrors > Home > MPE Home > Th. List > ltmuldivswd | Structured version Visualization version GIF version | ||
| Description: Surreal less-than relationship between division and multiplication. Weak version. (Contributed by Scott Fenton, 14-Mar-2025.) |
| Ref | Expression |
|---|---|
| ltdivmulswd.1 | ⊢ (𝜑 → 𝐴 ∈ No ) |
| ltdivmulswd.2 | ⊢ (𝜑 → 𝐵 ∈ No ) |
| ltdivmulswd.3 | ⊢ (𝜑 → 𝐶 ∈ No ) |
| ltdivmulswd.4 | ⊢ (𝜑 → 0s <s 𝐶) |
| ltdivmulswd.5 | ⊢ (𝜑 → ∃𝑥 ∈ No (𝐶 ·s 𝑥) = 1s ) |
| Ref | Expression |
|---|---|
| ltmuldivswd | ⊢ (𝜑 → ((𝐴 ·s 𝐶) <s 𝐵 ↔ 𝐴 <s (𝐵 /su 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltdivmulswd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ No ) | |
| 2 | ltdivmulswd.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ No ) | |
| 3 | ltdivmulswd.3 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ No ) | |
| 4 | ltdivmulswd.4 | . . . . 5 ⊢ (𝜑 → 0s <s 𝐶) | |
| 5 | 4 | gt0ne0sd 28012 | . . . 4 ⊢ (𝜑 → 𝐶 ≠ 0s ) |
| 6 | ltdivmulswd.5 | . . . 4 ⊢ (𝜑 → ∃𝑥 ∈ No (𝐶 ·s 𝑥) = 1s ) | |
| 7 | 2, 3, 5, 6 | divsclwd 28389 | . . 3 ⊢ (𝜑 → (𝐵 /su 𝐶) ∈ No ) |
| 8 | 1, 7, 3, 4 | ltmuls1d 28366 | . 2 ⊢ (𝜑 → (𝐴 <s (𝐵 /su 𝐶) ↔ (𝐴 ·s 𝐶) <s ((𝐵 /su 𝐶) ·s 𝐶))) |
| 9 | 2, 3, 5, 6 | divscan1wd 28391 | . . 3 ⊢ (𝜑 → ((𝐵 /su 𝐶) ·s 𝐶) = 𝐵) |
| 10 | 9 | breq2d 5121 | . 2 ⊢ (𝜑 → ((𝐴 ·s 𝐶) <s ((𝐵 /su 𝐶) ·s 𝐶) ↔ (𝐴 ·s 𝐶) <s 𝐵)) |
| 11 | 8, 10 | bitr2d 283 | 1 ⊢ (𝜑 → ((𝐴 ·s 𝐶) <s 𝐵 ↔ 𝐴 <s (𝐵 /su 𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2143 ∃wrex 3089 class class class wbr 5109 (class class class)co 7410 No csur 27804 <s clts 27805 0s c0s 27998 1s c1s 27999 ·s cmuls 28299 /su cdivs 28380 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5238 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-tp 4594 df-op 4596 df-ot 4598 df-uni 4873 df-int 4913 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5556 df-eprel 5561 df-po 5569 df-so 5570 df-fr 5614 df-se 5615 df-we 5616 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-pred 6302 df-ord 6363 df-on 6364 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-1st 7982 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8354 df-1o 8449 df-2o 8450 df-nadd 8648 df-no 27807 df-lts 27808 df-bday 27809 df-les 27909 df-slts 27951 df-cuts 27953 df-0s 28000 df-1s 28001 df-made 28020 df-old 28021 df-left 28023 df-right 28024 df-norec 28131 df-norec2 28142 df-adds 28153 df-negs 28214 df-subs 28215 df-muls 28300 df-divs 28381 |
| This theorem is referenced by: ltmuldivs2wd 28395 precsexlem9 28408 ltmuldivsd 28422 |
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