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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 27992 | . 2 ⊢ (𝜑 → (𝐴 +s 𝐵) ∈ No ) |
| 4 | lt2addsd.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ No ) | |
| 5 | 4, 2 | addscld 27992 | . 2 ⊢ (𝜑 → (𝐶 +s 𝐵) ∈ No ) |
| 6 | lt2addsd.4 | . . 3 ⊢ (𝜑 → 𝐷 ∈ No ) | |
| 7 | 4, 6 | addscld 27992 | . 2 ⊢ (𝜑 → (𝐶 +s 𝐷) ∈ No ) |
| 8 | lt2addsd.5 | . . 3 ⊢ (𝜑 → 𝐴 <s 𝐶) | |
| 9 | 1, 4, 2 | ltadds1d 28010 | . . 3 ⊢ (𝜑 → (𝐴 <s 𝐶 ↔ (𝐴 +s 𝐵) <s (𝐶 +s 𝐵))) |
| 10 | 8, 9 | mpbid 234 | . 2 ⊢ (𝜑 → (𝐴 +s 𝐵) <s (𝐶 +s 𝐵)) |
| 11 | lt2addsd.6 | . . 3 ⊢ (𝜑 → 𝐵 <s 𝐷) | |
| 12 | 2, 6, 4 | ltadds2d 28009 | . . 3 ⊢ (𝜑 → (𝐵 <s 𝐷 ↔ (𝐶 +s 𝐵) <s (𝐶 +s 𝐷))) |
| 13 | 11, 12 | mpbid 234 | . 2 ⊢ (𝜑 → (𝐶 +s 𝐵) <s (𝐶 +s 𝐷)) |
| 14 | 3, 5, 7, 10, 13 | ltstrd 27747 | 1 ⊢ (𝜑 → (𝐴 +s 𝐵) <s (𝐶 +s 𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2121 class class class wbr 5074 (class class class)co 7359 No csur 27624 <s clts 27625 +s cadds 27971 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7681 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-ral 3056 df-rex 3066 df-rmo 3346 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3725 df-csb 3833 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-pss 3904 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-tp 4562 df-op 4564 df-ot 4566 df-uni 4841 df-int 4880 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-se 5574 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6255 df-ord 6316 df-on 6317 df-suc 6319 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-riota 7316 df-ov 7362 df-oprab 7363 df-mpo 7364 df-1st 7933 df-2nd 7934 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-1o 8399 df-2o 8400 df-nadd 8596 df-no 27627 df-lts 27628 df-bday 27629 df-les 27729 df-slts 27770 df-cuts 27772 df-0s 27819 df-made 27839 df-old 27840 df-left 27842 df-right 27843 df-norec2 27961 df-adds 27972 |
| This theorem is referenced by: addsgt0d 28026 readdscl 28511 |
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