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Theorem nulsgtsd 28008
Description: The empty set is greater than any set of surreals. Deduction version. (Contributed by Scott Fenton, 27-Feb-2026.)
Hypotheses
Ref Expression
nulsltsd.1 (𝜑𝐴𝑉)
nulsltsd.2 (𝜑𝐴 No )
Assertion
Ref Expression
nulsgtsd (𝜑𝐴 <<s ∅)

Proof of Theorem nulsgtsd
StepHypRef Expression
1 nulsltsd.1 . . 3 (𝜑𝐴𝑉)
2 nulsltsd.2 . . 3 (𝜑𝐴 No )
31, 2elpwd 4573 . 2 (𝜑𝐴 ∈ 𝒫 No )
4 nulsgts 28006 . 2 (𝐴 ∈ 𝒫 No 𝐴 <<s ∅)
53, 4syl 18 1 (𝜑𝐴 <<s ∅)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wcel 2146  wss 3908  c0 4289  𝒫 cpw 4567   class class class wbr 5114   No csur 27841   <<s cslts 27987
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 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-ext 2738  ax-sep 5262  ax-nul 5274  ax-pr 5409
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-clab 2745  df-cleq 2758  df-clel 2841  df-ral 3083  df-rex 3093  df-rab 3420  df-v 3460  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-nul 4290  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-br 5115  df-opab 5179  df-xp 5672  df-slts 27988
This theorem is used by: (None)
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