Theorem recnprss 15007

Description: Both ℝ and ℂ are subsets of ℂ. (Contributed by Mario Carneiro, 10-Feb-2015.)

Assertion

Ref	Expression
recnprss	⊢ (𝑆 ∈ {ℝ, ℂ} → 𝑆 ⊆ ℂ)

Proof of Theorem recnprss

Step	Hyp	Ref	Expression
1		elpri 3646	. 2 ⊢ (𝑆 ∈ {ℝ, ℂ} → (𝑆 = ℝ ∨ 𝑆 = ℂ))
2		ax-resscn 7988	. . . 4 ⊢ ℝ ⊆ ℂ
3		sseq1 3207	. . . 4 ⊢ (𝑆 = ℝ → (𝑆 ⊆ ℂ ↔ ℝ ⊆ ℂ))
4	2, 3	mpbiri 168	. . 3 ⊢ (𝑆 = ℝ → 𝑆 ⊆ ℂ)
5		eqimss 3238	. . 3 ⊢ (𝑆 = ℂ → 𝑆 ⊆ ℂ)
6	4, 5	jaoi 717	. 2 ⊢ ((𝑆 = ℝ ∨ 𝑆 = ℂ) → 𝑆 ⊆ ℂ)
7	1, 6	syl 14	1 ⊢ (𝑆 ∈ {ℝ, ℂ} → 𝑆 ⊆ ℂ)

Syntax hints:   → wi 4   ∨ wo 709   = wceq 1364   ∈ wcel 2167   ⊆ wss 3157  {cpr 3624  ℂcc 7894  ℝcr 7895

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 710  ax-5 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-10 1519  ax-11 1520  ax-i12 1521  ax-bndl 1523  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-ext 2178  ax-resscn 7988

This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1475  df-sb 1777  df-clab 2183  df-cleq 2189  df-clel 2192  df-nfc 2328  df-v 2765  df-un 3161  df-in 3163  df-ss 3170  df-sn 3629  df-pr 3630

This theorem is referenced by:  dvfgg  15008  dvidsslem  15013  dvconstss  15018  dvaddxx  15023  dvmulxx  15024  dviaddf  15025  dvimulf  15026  dvmptfsum  15045