igenidl2 - Mathbox for Jeff Madsen

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Theorem igenidl2 38749

Description: Obsolete theorem, use rspidlid 33712 instead. The ideal generated by an ideal is that ideal. (Contributed by Jeff Madsen, 10-Jun-2010.) (New usage is discouraged.) (Proof modification is discouraged.)

**Assertion**
Ref	Expression
igenidl2	⊢ ((𝑅 ∈ RingOps ∧ 𝐼 ∈ (Idl‘𝑅)) → (𝑅 IdlGen 𝐼) = 𝐼)

Proof of Theorem igenidl2 Dummy variable 𝑗 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		eqid 2765	. . . 4 ⊢ (1^st ‘𝑅) = (1^st ‘𝑅)
2		eqid 2765	. . . 4 ⊢ ran (1^st ‘𝑅) = ran (1^st ‘𝑅)
3	1, 2	idlss 38700	. . 3 ⊢ ((𝑅 ∈ RingOps ∧ 𝐼 ∈ (Idl‘𝑅)) → 𝐼 ⊆ ran (1^st ‘𝑅))
4	1, 2	igenval 38745	. . 3 ⊢ ((𝑅 ∈ RingOps ∧ 𝐼 ⊆ ran (1^st ‘𝑅)) → (𝑅 IdlGen 𝐼) = ∩ {𝑗 ∈ (Idl‘𝑅) ∣ 𝐼 ⊆ 𝑗})
5	3, 4	syldan 603	. 2 ⊢ ((𝑅 ∈ RingOps ∧ 𝐼 ∈ (Idl‘𝑅)) → (𝑅 IdlGen 𝐼) = ∩ {𝑗 ∈ (Idl‘𝑅) ∣ 𝐼 ⊆ 𝑗})
6		intmin 4935	. . 3 ⊢ (𝐼 ∈ (Idl‘𝑅) → ∩ {𝑗 ∈ (Idl‘𝑅) ∣ 𝐼 ⊆ 𝑗} = 𝐼)
7	6	adantl 487	. 2 ⊢ ((𝑅 ∈ RingOps ∧ 𝐼 ∈ (Idl‘𝑅)) → ∩ {𝑗 ∈ (Idl‘𝑅) ∣ 𝐼 ⊆ 𝑗} = 𝐼)
8	5, 7	eqtrd 2800	1 ⊢ ((𝑅 ∈ RingOps ∧ 𝐼 ∈ (Idl‘𝑅)) → (𝑅 IdlGen 𝐼) = 𝐼)

Colors of variables: wff setvar class

This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2146 {crab 3418 ⊆ wss 3906 ∩ cint 4914 ran crn 5664 ‘cfv 6540 (class class class)co 7416 1^st c1st 7986 RingOpscrngo 38578 Idlcidl 38691 IdlGen cigen 38743

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-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7738

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-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-fo 6546 df-fv 6548 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-1st 7988 df-2nd 7989 df-grpo 30874 df-gid 30875 df-ablo 30926 df-rngo 38579 df-idl 38694 df-igen 38744

This theorem is used by: (None)

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