| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > addslid | Structured version Visualization version GIF version | ||
| Description: Surreal addition to zero is identity. (Contributed by Scott Fenton, 3-Feb-2025.) |
| Ref | Expression |
|---|---|
| addslid | ⊢ (𝐴 ∈ No → ( 0s +s 𝐴) = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | id 22 | . . 3 ⊢ (𝐴 ∈ No → 𝐴 ∈ No ) | |
| 2 | 0no 27826 | . . . 4 ⊢ 0s ∈ No | |
| 3 | 2 | a1i 11 | . . 3 ⊢ (𝐴 ∈ No → 0s ∈ No ) |
| 4 | 1, 3 | addscomd 27984 | . 2 ⊢ (𝐴 ∈ No → (𝐴 +s 0s ) = ( 0s +s 𝐴)) |
| 5 | addsrid 27981 | . 2 ⊢ (𝐴 ∈ No → (𝐴 +s 0s ) = 𝐴) | |
| 6 | 4, 5 | eqtr3d 2777 | 1 ⊢ (𝐴 ∈ No → ( 0s +s 𝐴) = 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 (class class class)co 7363 No csur 27628 0s c0s 27822 +s cadds 27976 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2712 ax-rep 5206 ax-sep 5225 ax-nul 5235 ax-pow 5301 ax-pr 5369 ax-un 7685 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ne 2936 df-ral 3055 df-rex 3065 df-rmo 3345 df-reu 3346 df-rab 3393 df-v 3434 df-sbc 3731 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-tp 4567 df-op 4569 df-uni 4846 df-int 4885 df-iun 4930 df-br 5080 df-opab 5142 df-mpt 5161 df-tr 5187 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-se 5579 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6259 df-ord 6320 df-on 6321 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7320 df-ov 7366 df-oprab 7367 df-mpo 7368 df-1st 7938 df-2nd 7939 df-frecs 8228 df-wrecs 8259 df-recs 8308 df-1o 8402 df-2o 8403 df-no 27631 df-lts 27632 df-bday 27633 df-slts 27775 df-cuts 27777 df-0s 27824 df-made 27844 df-old 27845 df-left 27847 df-right 27848 df-norec2 27966 df-adds 27977 |
| This theorem is referenced by: ltaddspos2d 28029 negsdi 28067 negsval2 28083 subadds 28087 posdifsd 28115 subsge0d 28117 precsexlem11 28234 nnsge1 28360 1n0s 28365 n0lts1e0 28385 n0p1nns 28388 dfnns2 28389 eucliddivs 28393 peano5uzs 28421 zsoring 28426 twocut 28440 expsp1 28446 pw2cut 28477 bdaypw2n0bndlem 28480 bdayfinbndlem1 28484 z12bdaylem1 28487 |
| Copyright terms: Public domain | W3C validator |