Theorem bj-gabssd 36919

Description: Inclusion of generalized class abstractions. Deduction form. (Contributed by BJ, 4-Oct-2024.)

Hypotheses

Ref	Expression
bj-gabssd.nf	⊢ (𝜑 → ∀𝑥𝜑)
bj-gabssd.c	⊢ (𝜑 → 𝐴 = 𝐵)
bj-gabssd.f	⊢ (𝜑 → (𝜓 → 𝜒))

Assertion

Ref	Expression
bj-gabssd	⊢ (𝜑 → {𝐴 ∣ 𝑥 ∣ 𝜓} ⊆ {𝐵 ∣ 𝑥 ∣ 𝜒})

Proof of Theorem bj-gabssd

Step	Hyp	Ref	Expression
1		bj-gabssd.nf	. . 3 ⊢ (𝜑 → ∀𝑥𝜑)
2		bj-gabssd.c	. . . 4 ⊢ (𝜑 → 𝐴 = 𝐵)
3		bj-gabssd.f	. . . 4 ⊢ (𝜑 → (𝜓 → 𝜒))
4	2, 3	jca 511	. . 3 ⊢ (𝜑 → (𝐴 = 𝐵 ∧ (𝜓 → 𝜒)))
5	1, 4	alrimih 1821	. 2 ⊢ (𝜑 → ∀𝑥(𝐴 = 𝐵 ∧ (𝜓 → 𝜒)))
6		bj-gabss 36918	. 2 ⊢ (∀𝑥(𝐴 = 𝐵 ∧ (𝜓 → 𝜒)) → {𝐴 ∣ 𝑥 ∣ 𝜓} ⊆ {𝐵 ∣ 𝑥 ∣ 𝜒})
7	5, 6	syl 17	1 ⊢ (𝜑 → {𝐴 ∣ 𝑥 ∣ 𝜓} ⊆ {𝐵 ∣ 𝑥 ∣ 𝜒})

Syntax hints:   → wi 4   ∧ wa 395  ∀wal 1535   = wceq 1537   ⊆ wss 3963  {bj-cgab 36916

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1908  ax-6 1965  ax-7 2005  ax-8 2108  ax-9 2116  ax-10 2139  ax-11 2155  ax-12 2175  ax-ext 2706

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-ex 1777  df-nf 1781  df-sb 2063  df-clab 2713  df-cleq 2727  df-clel 2814  df-nfc 2890  df-ss 3980  df-bj-gab 36917

This theorem is referenced by:  bj-gabeqd  36920