Theorem recnprss 15417

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 3692	. 2 ⊢ (𝑆 ∈ {ℝ, ℂ} → (𝑆 = ℝ ∨ 𝑆 = ℂ))
2		ax-resscn 8124	. . . 4 ⊢ ℝ ⊆ ℂ
3		sseq1 3250	. . . 4 ⊢ (𝑆 = ℝ → (𝑆 ⊆ ℂ ↔ ℝ ⊆ ℂ))
4	2, 3	mpbiri 168	. . 3 ⊢ (𝑆 = ℝ → 𝑆 ⊆ ℂ)
5		eqimss 3281	. . 3 ⊢ (𝑆 = ℂ → 𝑆 ⊆ ℂ)
6	4, 5	jaoi 723	. 2 ⊢ ((𝑆 = ℝ ∨ 𝑆 = ℂ) → 𝑆 ⊆ ℂ)
7	1, 6	syl 14	1 ⊢ (𝑆 ∈ {ℝ, ℂ} → 𝑆 ⊆ ℂ)

Syntax hints:   → wi 4   ∨ wo 715   = wceq 1397   ∈ wcel 2202   ⊆ wss 3200  {cpr 3670  ℂcc 8030  ℝcr 8031

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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-ext 2213  ax-resscn 8124

This theorem depends on definitions:  df-bi 117  df-tru 1400  df-nf 1509  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-v 2804  df-un 3204  df-in 3206  df-ss 3213  df-sn 3675  df-pr 3676

This theorem is referenced by:  dvfgg  15418  dvidsslem  15423  dvconstss  15428  dvaddxx  15433  dvmulxx  15434  dviaddf  15435  dvimulf  15436  dvmptfsum  15455