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| Mirrors > Home > MPE Home > Th. List > lt2addsd | Structured version Visualization version GIF version | ||
| Description: Adding both sides of two surreal less-than relations. (Contributed by Scott Fenton, 15-Apr-2025.) |
| Ref | Expression |
|---|---|
| lt2addsd.1 | ⊢ (𝜑 → 𝐴 ∈ No) |
| lt2addsd.2 | ⊢ (𝜑 → 𝐵 ∈ No) |
| lt2addsd.3 | ⊢ (𝜑 → 𝐶 ∈ No) |
| lt2addsd.4 | ⊢ (𝜑 → 𝐷 ∈ No) |
| lt2addsd.5 | ⊢ (𝜑 → 𝐴 <s 𝐶) |
| lt2addsd.6 | ⊢ (𝜑 → 𝐵 <s 𝐷) |
| Ref | Expression |
|---|---|
| lt2addsd | ⊢ (𝜑 → (𝐴 +s 𝐵) <s (𝐶 +s 𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lt2addsd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ No) | |
| 2 | lt2addsd.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ No) | |
| 3 | 1, 2 | addscld 28393 | . 2 ⊢ (𝜑 → (𝐴 +s 𝐵) ∈ No) |
| 4 | lt2addsd.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ No) | |
| 5 | 4, 2 | addscld 28393 | . 2 ⊢ (𝜑 → (𝐶 +s 𝐵) ∈ No) |
| 6 | lt2addsd.4 | . . 3 ⊢ (𝜑 → 𝐷 ∈ No) | |
| 7 | 4, 6 | addscld 28393 | . 2 ⊢ (𝜑 → (𝐶 +s 𝐷) ∈ No) |
| 8 | lt2addsd.5 | . . 3 ⊢ (𝜑 → 𝐴 <s 𝐶) | |
| 9 | 1, 4, 2 | ltadds1d 28411 | . . 3 ⊢ (𝜑 → (𝐴 <s 𝐶 ↔ (𝐴 +s 𝐵) <s (𝐶 +s 𝐵))) |
| 10 | 8, 9 | mpbid 235 | . 2 ⊢ (𝜑 → (𝐴 +s 𝐵) <s (𝐶 +s 𝐵)) |
| 11 | lt2addsd.6 | . . 3 ⊢ (𝜑 → 𝐵 <s 𝐷) | |
| 12 | 2, 6, 4 | ltadds2d 28410 | . . 3 ⊢ (𝜑 → (𝐵 <s 𝐷 ↔ (𝐶 +s 𝐵) <s (𝐶 +s 𝐷))) |
| 13 | 11, 12 | mpbid 235 | . 2 ⊢ (𝜑 → (𝐶 +s 𝐵) <s (𝐶 +s 𝐷)) |
| 14 | 3, 5, 7, 10, 13 | ltstrd 28147 | 1 ⊢ (𝜑 → (𝐴 +s 𝐵) <s (𝐶 +s 𝐷)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2147 class class class wbr 5106 (class class class)co 7440 Nocsur 28024 <s clts 28025 +s cadds 28372 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7772 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 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 6319 df-ord 6380 df-on 6381 df-suc 6383 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-riota 7397 df-ov 7443 df-oprab 7444 df-mpo 7445 df-1st 8022 df-2nd 8023 df-frecs 8324 df-wrecs 8355 df-recs 8404 df-1o 8501 df-2o 8502 df-nadd 8700 df-no 28027 df-lts 28028 df-bday 28029 df-les 28129 df-slts 28171 df-cuts 28173 df-0s 28220 df-made 28240 df-old 28241 df-left 28243 df-right 28244 df-norec2 28362 df-adds 28373 |
| This theorem is used by: addsgt0d 28427 readdscl 28912 |
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