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Theorem rngohomco 33391
 Description: The composition of two ring homomorphisms is a ring homomorphism. (Contributed by Jeff Madsen, 16-Jun-2011.)
Assertion
Ref Expression
rngohomco (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → (𝐺𝐹) ∈ (𝑅 RngHom 𝑇))

Proof of Theorem rngohomco
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2626 . . . . . . 7 (1st𝑆) = (1st𝑆)
2 eqid 2626 . . . . . . 7 ran (1st𝑆) = ran (1st𝑆)
3 eqid 2626 . . . . . . 7 (1st𝑇) = (1st𝑇)
4 eqid 2626 . . . . . . 7 ran (1st𝑇) = ran (1st𝑇)
51, 2, 3, 4rngohomf 33383 . . . . . 6 ((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → 𝐺:ran (1st𝑆)⟶ran (1st𝑇))
653expa 1262 . . . . 5 (((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → 𝐺:ran (1st𝑆)⟶ran (1st𝑇))
763adantl1 1215 . . . 4 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → 𝐺:ran (1st𝑆)⟶ran (1st𝑇))
87adantrl 751 . . 3 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → 𝐺:ran (1st𝑆)⟶ran (1st𝑇))
9 eqid 2626 . . . . . . 7 (1st𝑅) = (1st𝑅)
10 eqid 2626 . . . . . . 7 ran (1st𝑅) = ran (1st𝑅)
119, 10, 1, 2rngohomf 33383 . . . . . 6 ((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → 𝐹:ran (1st𝑅)⟶ran (1st𝑆))
12113expa 1262 . . . . 5 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → 𝐹:ran (1st𝑅)⟶ran (1st𝑆))
13123adantl3 1217 . . . 4 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → 𝐹:ran (1st𝑅)⟶ran (1st𝑆))
1413adantrr 752 . . 3 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → 𝐹:ran (1st𝑅)⟶ran (1st𝑆))
15 fco 6017 . . 3 ((𝐺:ran (1st𝑆)⟶ran (1st𝑇) ∧ 𝐹:ran (1st𝑅)⟶ran (1st𝑆)) → (𝐺𝐹):ran (1st𝑅)⟶ran (1st𝑇))
168, 14, 15syl2anc 692 . 2 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → (𝐺𝐹):ran (1st𝑅)⟶ran (1st𝑇))
17 eqid 2626 . . . . . . 7 (2nd𝑅) = (2nd𝑅)
18 eqid 2626 . . . . . . 7 (GId‘(2nd𝑅)) = (GId‘(2nd𝑅))
1910, 17, 18rngo1cl 33356 . . . . . 6 (𝑅 ∈ RingOps → (GId‘(2nd𝑅)) ∈ ran (1st𝑅))
20193ad2ant1 1080 . . . . 5 ((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) → (GId‘(2nd𝑅)) ∈ ran (1st𝑅))
2120adantr 481 . . . 4 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → (GId‘(2nd𝑅)) ∈ ran (1st𝑅))
22 fvco3 6233 . . . 4 ((𝐹:ran (1st𝑅)⟶ran (1st𝑆) ∧ (GId‘(2nd𝑅)) ∈ ran (1st𝑅)) → ((𝐺𝐹)‘(GId‘(2nd𝑅))) = (𝐺‘(𝐹‘(GId‘(2nd𝑅)))))
2314, 21, 22syl2anc 692 . . 3 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → ((𝐺𝐹)‘(GId‘(2nd𝑅))) = (𝐺‘(𝐹‘(GId‘(2nd𝑅)))))
24 eqid 2626 . . . . . . . . 9 (2nd𝑆) = (2nd𝑆)
25 eqid 2626 . . . . . . . . 9 (GId‘(2nd𝑆)) = (GId‘(2nd𝑆))
2617, 18, 24, 25rngohom1 33385 . . . . . . . 8 ((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → (𝐹‘(GId‘(2nd𝑅))) = (GId‘(2nd𝑆)))
27263expa 1262 . . . . . . 7 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → (𝐹‘(GId‘(2nd𝑅))) = (GId‘(2nd𝑆)))
28273adantl3 1217 . . . . . 6 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → (𝐹‘(GId‘(2nd𝑅))) = (GId‘(2nd𝑆)))
2928adantrr 752 . . . . 5 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → (𝐹‘(GId‘(2nd𝑅))) = (GId‘(2nd𝑆)))
3029fveq2d 6154 . . . 4 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → (𝐺‘(𝐹‘(GId‘(2nd𝑅)))) = (𝐺‘(GId‘(2nd𝑆))))
31 eqid 2626 . . . . . . . 8 (2nd𝑇) = (2nd𝑇)
32 eqid 2626 . . . . . . . 8 (GId‘(2nd𝑇)) = (GId‘(2nd𝑇))
3324, 25, 31, 32rngohom1 33385 . . . . . . 7 ((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (𝐺‘(GId‘(2nd𝑆))) = (GId‘(2nd𝑇)))
34333expa 1262 . . . . . 6 (((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (𝐺‘(GId‘(2nd𝑆))) = (GId‘(2nd𝑇)))
35343adantl1 1215 . . . . 5 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (𝐺‘(GId‘(2nd𝑆))) = (GId‘(2nd𝑇)))
3635adantrl 751 . . . 4 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → (𝐺‘(GId‘(2nd𝑆))) = (GId‘(2nd𝑇)))
3730, 36eqtrd 2660 . . 3 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → (𝐺‘(𝐹‘(GId‘(2nd𝑅)))) = (GId‘(2nd𝑇)))
3823, 37eqtrd 2660 . 2 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → ((𝐺𝐹)‘(GId‘(2nd𝑅))) = (GId‘(2nd𝑇)))
399, 10, 1rngohomadd 33386 . . . . . . . . . . . 12 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐹‘(𝑥(1st𝑅)𝑦)) = ((𝐹𝑥)(1st𝑆)(𝐹𝑦)))
4039ex 450 . . . . . . . . . . 11 ((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝐹‘(𝑥(1st𝑅)𝑦)) = ((𝐹𝑥)(1st𝑆)(𝐹𝑦))))
41403expa 1262 . . . . . . . . . 10 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝐹‘(𝑥(1st𝑅)𝑦)) = ((𝐹𝑥)(1st𝑆)(𝐹𝑦))))
42413adantl3 1217 . . . . . . . . 9 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝐹‘(𝑥(1st𝑅)𝑦)) = ((𝐹𝑥)(1st𝑆)(𝐹𝑦))))
4342imp 445 . . . . . . . 8 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐹‘(𝑥(1st𝑅)𝑦)) = ((𝐹𝑥)(1st𝑆)(𝐹𝑦)))
4443adantlrr 756 . . . . . . 7 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐹‘(𝑥(1st𝑅)𝑦)) = ((𝐹𝑥)(1st𝑆)(𝐹𝑦)))
4544fveq2d 6154 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐺‘(𝐹‘(𝑥(1st𝑅)𝑦))) = (𝐺‘((𝐹𝑥)(1st𝑆)(𝐹𝑦))))
469, 10, 1, 2rngohomcl 33384 . . . . . . . . . . . . 13 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) ∧ 𝑥 ∈ ran (1st𝑅)) → (𝐹𝑥) ∈ ran (1st𝑆))
479, 10, 1, 2rngohomcl 33384 . . . . . . . . . . . . 13 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝐹𝑦) ∈ ran (1st𝑆))
4846, 47anim12da 33124 . . . . . . . . . . . 12 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)))
4948ex 450 . . . . . . . . . . 11 ((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))))
50493expa 1262 . . . . . . . . . 10 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))))
51503adantl3 1217 . . . . . . . . 9 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))))
5251imp 445 . . . . . . . 8 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)))
5352adantlrr 756 . . . . . . 7 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)))
541, 2, 3rngohomadd 33386 . . . . . . . . . . . 12 (((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) ∧ ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))) → (𝐺‘((𝐹𝑥)(1st𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦))))
5554ex 450 . . . . . . . . . . 11 ((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)) → (𝐺‘((𝐹𝑥)(1st𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦)))))
56553expa 1262 . . . . . . . . . 10 (((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)) → (𝐺‘((𝐹𝑥)(1st𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦)))))
57563adantl1 1215 . . . . . . . . 9 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)) → (𝐺‘((𝐹𝑥)(1st𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦)))))
5857imp 445 . . . . . . . 8 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) ∧ ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))) → (𝐺‘((𝐹𝑥)(1st𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦))))
5958adantlrl 755 . . . . . . 7 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))) → (𝐺‘((𝐹𝑥)(1st𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦))))
6053, 59syldan 487 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐺‘((𝐹𝑥)(1st𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦))))
6145, 60eqtrd 2660 . . . . 5 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐺‘(𝐹‘(𝑥(1st𝑅)𝑦))) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦))))
629, 10rngogcl 33329 . . . . . . . . 9 ((𝑅 ∈ RingOps ∧ 𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝑥(1st𝑅)𝑦) ∈ ran (1st𝑅))
63623expb 1263 . . . . . . . 8 ((𝑅 ∈ RingOps ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝑥(1st𝑅)𝑦) ∈ ran (1st𝑅))
64633ad2antl1 1221 . . . . . . 7 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝑥(1st𝑅)𝑦) ∈ ran (1st𝑅))
6564adantlr 750 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝑥(1st𝑅)𝑦) ∈ ran (1st𝑅))
66 fvco3 6233 . . . . . . 7 ((𝐹:ran (1st𝑅)⟶ran (1st𝑆) ∧ (𝑥(1st𝑅)𝑦) ∈ ran (1st𝑅)) → ((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (𝐺‘(𝐹‘(𝑥(1st𝑅)𝑦))))
6714, 66sylan 488 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥(1st𝑅)𝑦) ∈ ran (1st𝑅)) → ((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (𝐺‘(𝐹‘(𝑥(1st𝑅)𝑦))))
6865, 67syldan 487 . . . . 5 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → ((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (𝐺‘(𝐹‘(𝑥(1st𝑅)𝑦))))
69 fvco3 6233 . . . . . . . 8 ((𝐹:ran (1st𝑅)⟶ran (1st𝑆) ∧ 𝑥 ∈ ran (1st𝑅)) → ((𝐺𝐹)‘𝑥) = (𝐺‘(𝐹𝑥)))
7014, 69sylan 488 . . . . . . 7 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ 𝑥 ∈ ran (1st𝑅)) → ((𝐺𝐹)‘𝑥) = (𝐺‘(𝐹𝑥)))
71 fvco3 6233 . . . . . . . 8 ((𝐹:ran (1st𝑅)⟶ran (1st𝑆) ∧ 𝑦 ∈ ran (1st𝑅)) → ((𝐺𝐹)‘𝑦) = (𝐺‘(𝐹𝑦)))
7214, 71sylan 488 . . . . . . 7 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ 𝑦 ∈ ran (1st𝑅)) → ((𝐺𝐹)‘𝑦) = (𝐺‘(𝐹𝑦)))
7370, 72anim12da 33124 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (((𝐺𝐹)‘𝑥) = (𝐺‘(𝐹𝑥)) ∧ ((𝐺𝐹)‘𝑦) = (𝐺‘(𝐹𝑦))))
74 oveq12 6614 . . . . . 6 ((((𝐺𝐹)‘𝑥) = (𝐺‘(𝐹𝑥)) ∧ ((𝐺𝐹)‘𝑦) = (𝐺‘(𝐹𝑦))) → (((𝐺𝐹)‘𝑥)(1st𝑇)((𝐺𝐹)‘𝑦)) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦))))
7573, 74syl 17 . . . . 5 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (((𝐺𝐹)‘𝑥)(1st𝑇)((𝐺𝐹)‘𝑦)) = ((𝐺‘(𝐹𝑥))(1st𝑇)(𝐺‘(𝐹𝑦))))
7661, 68, 753eqtr4d 2670 . . . 4 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → ((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(1st𝑇)((𝐺𝐹)‘𝑦)))
779, 10, 17, 24rngohommul 33387 . . . . . . . . . . . 12 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐹‘(𝑥(2nd𝑅)𝑦)) = ((𝐹𝑥)(2nd𝑆)(𝐹𝑦)))
7877ex 450 . . . . . . . . . . 11 ((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝐹‘(𝑥(2nd𝑅)𝑦)) = ((𝐹𝑥)(2nd𝑆)(𝐹𝑦))))
79783expa 1262 . . . . . . . . . 10 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝐹‘(𝑥(2nd𝑅)𝑦)) = ((𝐹𝑥)(2nd𝑆)(𝐹𝑦))))
80793adantl3 1217 . . . . . . . . 9 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) → ((𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝐹‘(𝑥(2nd𝑅)𝑦)) = ((𝐹𝑥)(2nd𝑆)(𝐹𝑦))))
8180imp 445 . . . . . . . 8 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐹 ∈ (𝑅 RngHom 𝑆)) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐹‘(𝑥(2nd𝑅)𝑦)) = ((𝐹𝑥)(2nd𝑆)(𝐹𝑦)))
8281adantlrr 756 . . . . . . 7 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐹‘(𝑥(2nd𝑅)𝑦)) = ((𝐹𝑥)(2nd𝑆)(𝐹𝑦)))
8382fveq2d 6154 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐺‘(𝐹‘(𝑥(2nd𝑅)𝑦))) = (𝐺‘((𝐹𝑥)(2nd𝑆)(𝐹𝑦))))
841, 2, 24, 31rngohommul 33387 . . . . . . . . . . . 12 (((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) ∧ ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))) → (𝐺‘((𝐹𝑥)(2nd𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦))))
8584ex 450 . . . . . . . . . . 11 ((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)) → (𝐺‘((𝐹𝑥)(2nd𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦)))))
86853expa 1262 . . . . . . . . . 10 (((𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)) → (𝐺‘((𝐹𝑥)(2nd𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦)))))
87863adantl1 1215 . . . . . . . . 9 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) → (((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆)) → (𝐺‘((𝐹𝑥)(2nd𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦)))))
8887imp 445 . . . . . . . 8 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇)) ∧ ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))) → (𝐺‘((𝐹𝑥)(2nd𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦))))
8988adantlrl 755 . . . . . . 7 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ ((𝐹𝑥) ∈ ran (1st𝑆) ∧ (𝐹𝑦) ∈ ran (1st𝑆))) → (𝐺‘((𝐹𝑥)(2nd𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦))))
9053, 89syldan 487 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐺‘((𝐹𝑥)(2nd𝑆)(𝐹𝑦))) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦))))
9183, 90eqtrd 2660 . . . . 5 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝐺‘(𝐹‘(𝑥(2nd𝑅)𝑦))) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦))))
929, 17, 10rngocl 33318 . . . . . . . . 9 ((𝑅 ∈ RingOps ∧ 𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅)) → (𝑥(2nd𝑅)𝑦) ∈ ran (1st𝑅))
93923expb 1263 . . . . . . . 8 ((𝑅 ∈ RingOps ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝑥(2nd𝑅)𝑦) ∈ ran (1st𝑅))
94933ad2antl1 1221 . . . . . . 7 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝑥(2nd𝑅)𝑦) ∈ ran (1st𝑅))
9594adantlr 750 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (𝑥(2nd𝑅)𝑦) ∈ ran (1st𝑅))
96 fvco3 6233 . . . . . . 7 ((𝐹:ran (1st𝑅)⟶ran (1st𝑆) ∧ (𝑥(2nd𝑅)𝑦) ∈ ran (1st𝑅)) → ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (𝐺‘(𝐹‘(𝑥(2nd𝑅)𝑦))))
9714, 96sylan 488 . . . . . 6 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥(2nd𝑅)𝑦) ∈ ran (1st𝑅)) → ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (𝐺‘(𝐹‘(𝑥(2nd𝑅)𝑦))))
9895, 97syldan 487 . . . . 5 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (𝐺‘(𝐹‘(𝑥(2nd𝑅)𝑦))))
99 oveq12 6614 . . . . . 6 ((((𝐺𝐹)‘𝑥) = (𝐺‘(𝐹𝑥)) ∧ ((𝐺𝐹)‘𝑦) = (𝐺‘(𝐹𝑦))) → (((𝐺𝐹)‘𝑥)(2nd𝑇)((𝐺𝐹)‘𝑦)) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦))))
10073, 99syl 17 . . . . 5 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (((𝐺𝐹)‘𝑥)(2nd𝑇)((𝐺𝐹)‘𝑦)) = ((𝐺‘(𝐹𝑥))(2nd𝑇)(𝐺‘(𝐹𝑦))))
10191, 98, 1003eqtr4d 2670 . . . 4 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(2nd𝑇)((𝐺𝐹)‘𝑦)))
10276, 101jca 554 . . 3 ((((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) ∧ (𝑥 ∈ ran (1st𝑅) ∧ 𝑦 ∈ ran (1st𝑅))) → (((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(1st𝑇)((𝐺𝐹)‘𝑦)) ∧ ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(2nd𝑇)((𝐺𝐹)‘𝑦))))
103102ralrimivva 2970 . 2 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → ∀𝑥 ∈ ran (1st𝑅)∀𝑦 ∈ ran (1st𝑅)(((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(1st𝑇)((𝐺𝐹)‘𝑦)) ∧ ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(2nd𝑇)((𝐺𝐹)‘𝑦))))
1049, 17, 10, 18, 3, 31, 4, 32isrngohom 33382 . . . 4 ((𝑅 ∈ RingOps ∧ 𝑇 ∈ RingOps) → ((𝐺𝐹) ∈ (𝑅 RngHom 𝑇) ↔ ((𝐺𝐹):ran (1st𝑅)⟶ran (1st𝑇) ∧ ((𝐺𝐹)‘(GId‘(2nd𝑅))) = (GId‘(2nd𝑇)) ∧ ∀𝑥 ∈ ran (1st𝑅)∀𝑦 ∈ ran (1st𝑅)(((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(1st𝑇)((𝐺𝐹)‘𝑦)) ∧ ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(2nd𝑇)((𝐺𝐹)‘𝑦))))))
1051043adant2 1078 . . 3 ((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) → ((𝐺𝐹) ∈ (𝑅 RngHom 𝑇) ↔ ((𝐺𝐹):ran (1st𝑅)⟶ran (1st𝑇) ∧ ((𝐺𝐹)‘(GId‘(2nd𝑅))) = (GId‘(2nd𝑇)) ∧ ∀𝑥 ∈ ran (1st𝑅)∀𝑦 ∈ ran (1st𝑅)(((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(1st𝑇)((𝐺𝐹)‘𝑦)) ∧ ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(2nd𝑇)((𝐺𝐹)‘𝑦))))))
106105adantr 481 . 2 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → ((𝐺𝐹) ∈ (𝑅 RngHom 𝑇) ↔ ((𝐺𝐹):ran (1st𝑅)⟶ran (1st𝑇) ∧ ((𝐺𝐹)‘(GId‘(2nd𝑅))) = (GId‘(2nd𝑇)) ∧ ∀𝑥 ∈ ran (1st𝑅)∀𝑦 ∈ ran (1st𝑅)(((𝐺𝐹)‘(𝑥(1st𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(1st𝑇)((𝐺𝐹)‘𝑦)) ∧ ((𝐺𝐹)‘(𝑥(2nd𝑅)𝑦)) = (((𝐺𝐹)‘𝑥)(2nd𝑇)((𝐺𝐹)‘𝑦))))))
10716, 38, 103, 106mpbir3and 1243 1 (((𝑅 ∈ RingOps ∧ 𝑆 ∈ RingOps ∧ 𝑇 ∈ RingOps) ∧ (𝐹 ∈ (𝑅 RngHom 𝑆) ∧ 𝐺 ∈ (𝑆 RngHom 𝑇))) → (𝐺𝐹) ∈ (𝑅 RngHom 𝑇))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   ∧ w3a 1036   = wceq 1480   ∈ wcel 1992  ∀wral 2912  ran crn 5080   ∘ ccom 5083  ⟶wf 5846  ‘cfv 5850  (class class class)co 6605  1st c1st 7114  2nd c2nd 7115  GIdcgi 27184  RingOpscrngo 33311   RngHom crnghom 33377 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1841  ax-6 1890  ax-7 1937  ax-8 1994  ax-9 2001  ax-10 2021  ax-11 2036  ax-12 2049  ax-13 2250  ax-ext 2606  ax-sep 4746  ax-nul 4754  ax-pow 4808  ax-pr 4872  ax-un 6903 This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1883  df-eu 2478  df-mo 2479  df-clab 2613  df-cleq 2619  df-clel 2622  df-nfc 2756  df-ne 2797  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3193  df-sbc 3423  df-csb 3520  df-dif 3563  df-un 3565  df-in 3567  df-ss 3574  df-nul 3897  df-if 4064  df-pw 4137  df-sn 4154  df-pr 4156  df-op 4160  df-uni 4408  df-iun 4492  df-br 4619  df-opab 4679  df-mpt 4680  df-id 4994  df-xp 5085  df-rel 5086  df-cnv 5087  df-co 5088  df-dm 5089  df-rn 5090  df-res 5091  df-ima 5092  df-iota 5813  df-fun 5852  df-fn 5853  df-f 5854  df-fo 5856  df-fv 5858  df-riota 6566  df-ov 6608  df-oprab 6609  df-mpt2 6610  df-1st 7116  df-2nd 7117  df-map 7805  df-grpo 27187  df-gid 27188  df-ablo 27239  df-ass 33260  df-exid 33262  df-mgmOLD 33266  df-sgrOLD 33278  df-mndo 33284  df-rngo 33312  df-rngohom 33380 This theorem is referenced by:  rngoisoco  33399
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