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Theorem negs0s 27963
Description: Negative surreal zero is surreal zero. (Contributed by Scott Fenton, 20-Aug-2024.)
Assertion
Ref Expression
negs0s ( -us ‘ 0s ) = 0s

Proof of Theorem negs0s
StepHypRef Expression
1 right0s 27834 . . . . 5 ( R ‘ 0s ) = ∅
21imaeq2i 6002 . . . 4 ( -us “ ( R ‘ 0s )) = ( -us “ ∅)
3 ima0 6021 . . . 4 ( -us “ ∅) = ∅
42, 3eqtri 2754 . . 3 ( -us “ ( R ‘ 0s )) = ∅
5 left0s 27833 . . . . 5 ( L ‘ 0s ) = ∅
65imaeq2i 6002 . . . 4 ( -us “ ( L ‘ 0s )) = ( -us “ ∅)
76, 3eqtri 2754 . . 3 ( -us “ ( L ‘ 0s )) = ∅
84, 7oveq12i 7353 . 2 (( -us “ ( R ‘ 0s )) |s ( -us “ ( L ‘ 0s ))) = (∅ |s ∅)
9 0sno 27765 . . 3 0s No
10 negsval 27962 . . 3 ( 0s No → ( -us ‘ 0s ) = (( -us “ ( R ‘ 0s )) |s ( -us “ ( L ‘ 0s ))))
119, 10ax-mp 5 . 2 ( -us ‘ 0s ) = (( -us “ ( R ‘ 0s )) |s ( -us “ ( L ‘ 0s )))
12 df-0s 27763 . 2 0s = (∅ |s ∅)
138, 11, 123eqtr4i 2764 1 ( -us ‘ 0s ) = 0s
Colors of variables: wff setvar class
Syntax hints:   = wceq 1541  wcel 2111  c0 4278  cima 5614  cfv 6476  (class class class)co 7341   No csur 27573   |s cscut 27717   0s c0s 27761   L cleft 27781   R cright 27782   -us cnegs 27956
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2113  ax-9 2121  ax-10 2144  ax-11 2160  ax-12 2180  ax-ext 2703  ax-rep 5212  ax-sep 5229  ax-nul 5239  ax-pow 5298  ax-pr 5365  ax-un 7663
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2535  df-eu 2564  df-clab 2710  df-cleq 2723  df-clel 2806  df-nfc 2881  df-ne 2929  df-ral 3048  df-rex 3057  df-rmo 3346  df-reu 3347  df-rab 3396  df-v 3438  df-sbc 3737  df-csb 3846  df-dif 3900  df-un 3902  df-in 3904  df-ss 3914  df-pss 3917  df-nul 4279  df-if 4471  df-pw 4547  df-sn 4572  df-pr 4574  df-tp 4576  df-op 4578  df-uni 4855  df-int 4893  df-iun 4938  df-br 5087  df-opab 5149  df-mpt 5168  df-tr 5194  df-id 5506  df-eprel 5511  df-po 5519  df-so 5520  df-fr 5564  df-se 5565  df-we 5566  df-xp 5617  df-rel 5618  df-cnv 5619  df-co 5620  df-dm 5621  df-rn 5622  df-res 5623  df-ima 5624  df-pred 6243  df-ord 6304  df-on 6305  df-suc 6307  df-iota 6432  df-fun 6478  df-fn 6479  df-f 6480  df-f1 6481  df-fo 6482  df-f1o 6483  df-fv 6484  df-riota 7298  df-ov 7344  df-oprab 7345  df-mpo 7346  df-2nd 7917  df-frecs 8206  df-wrecs 8237  df-recs 8286  df-1o 8380  df-2o 8381  df-no 27576  df-slt 27577  df-bday 27578  df-sslt 27716  df-scut 27718  df-0s 27763  df-made 27783  df-old 27784  df-left 27786  df-right 27787  df-norec 27876  df-negs 27958
This theorem is referenced by:  negs1s  27964  slt0neg2d  27988  subsfo  28000  subsid1  28003  sltmulneg1d  28110  mulscan2d  28113  recsex  28152  abssnid  28176  absmuls  28177  abssge0  28178  abssneg  28180  sleabs  28181  elzs2  28318  elnnzs  28320  elznns  28321  recut  28393  0reno  28394
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