Theorem setrec2v 44789

Description: Version of setrec2 44788 with a disjoint variable condition instead of a non-freeness hypothesis. (Contributed by Emmett Weisz, 6-Mar-2021.)

Hypotheses

Ref	Expression
setrec2.b	⊢ 𝐵 = setrecs(𝐹)
setrec2.c	⊢ (𝜑 → ∀𝑎(𝑎 ⊆ 𝐶 → (𝐹‘𝑎) ⊆ 𝐶))

Assertion

Ref	Expression
setrec2v	⊢ (𝜑 → 𝐵 ⊆ 𝐶)

Distinct variable groups:   𝐹,𝑎   𝐶,𝑎

Allowed substitution hints:   𝜑(𝑎)   𝐵(𝑎)

Proof of Theorem setrec2v

Step	Hyp	Ref	Expression
1		nfcv 2975	. 2 ⊢ Ⅎ𝑎𝐹
2		setrec2.b	. 2 ⊢ 𝐵 = setrecs(𝐹)
3		setrec2.c	. 2 ⊢ (𝜑 → ∀𝑎(𝑎 ⊆ 𝐶 → (𝐹‘𝑎) ⊆ 𝐶))
4	1, 2, 3	setrec2 44788	1 ⊢ (𝜑 → 𝐵 ⊆ 𝐶)

Syntax hints:   → wi 4  ∀wal 1529   = wceq 1531   ⊆ wss 3934  ‘cfv 6348  setrecscsetrecs 44776

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1790  ax-4 1804  ax-5 1905  ax-6 1964  ax-7 2009  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2154  ax-12 2170  ax-ext 2791  ax-rep 5181  ax-sep 5194  ax-nul 5201  ax-pow 5257  ax-pr 5320  ax-un 7453

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1084  df-tru 1534  df-ex 1775  df-nf 1779  df-sb 2064  df-mo 2616  df-eu 2648  df-clab 2798  df-cleq 2812  df-clel 2891  df-nfc 2961  df-ne 3015  df-ral 3141  df-rex 3142  df-rab 3145  df-v 3495  df-sbc 3771  df-dif 3937  df-un 3939  df-in 3941  df-ss 3950  df-nul 4290  df-if 4466  df-pw 4539  df-sn 4560  df-pr 4562  df-op 4566  df-uni 4831  df-br 5058  df-opab 5120  df-id 5453  df-xp 5554  df-rel 5555  df-cnv 5556  df-co 5557  df-dm 5558  df-rn 5559  df-res 5560  df-ima 5561  df-iota 6307  df-fun 6350  df-fv 6356  df-setrecs 44777

This theorem is referenced by:  setis  44790  elsetrecslem  44791  setrecsss  44793  setrecsres  44794  0setrec  44796  onsetrec  44800