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Related theorems GIF version |
| Description: The value of a function given by an ordered-pair class abstraction. |
| Ref | Expression |
|---|---|
| fvopab.1 | ⊢ A ∈ V |
| fvopab.2 | ⊢ C ∈ V |
| fvopab.3 | ⊢ (x = A → B = C) |
| Ref | Expression |
|---|---|
| fvopab | ⊢ ({〈x, y〉∣y = B} ‘A) = C |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-17 973 | . 2 ⊢ (z ∈ A → ∀x z ∈ A) | |
| 2 | ax-17 973 | . 2 ⊢ (z ∈ C → ∀x z ∈ C) | |
| 3 | fvopab.1 | . 2 ⊢ A ∈ V | |
| 4 | fvopab.2 | . 2 ⊢ C ∈ V | |
| 5 | fvopab.3 | . 2 ⊢ (x = A → B = C) | |
| 6 | 1, 2, 3, 4, 5 | fvopabf 3795 | 1 ⊢ ({〈x, y〉∣y = B} ‘A) = C |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 = wceq 958 ∈ wcel 960 Vcvv 1814 {copab 2671 ‘cfv 3188 |
| This theorem is referenced by: fvresex 3863 oasuc 4169 omsuc 4171 oesuc 4172 inf3lema 4618 rankval 4678 numthlem 4793 zorn2lem1 4798 seq1rval 6312 symgval 10398 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-9 967 ax-10 968 ax-11 969 ax-12 970 ax-13 971 ax-14 972 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 ax-sep 2708 ax-pow 2748 ax-pr 2785 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 983 df-sb 1174 df-eu 1384 df-mo 1385 df-clab 1467 df-cleq 1472 df-clel 1475 df-ne 1590 df-rex 1653 df-v 1815 df-dif 2052 df-un 2053 df-in 2054 df-ss 2056 df-nul 2284 df-pw 2406 df-sn 2416 df-pr 2417 df-op 2420 df-uni 2508 df-br 2625 df-opab 2672 df-id 2841 df-xp 3190 df-rel 3191 df-cnv 3192 df-co 3193 df-dm 3194 df-rn 3195 df-res 3196 df-ima 3197 df-fun 3198 df-fv 3204 |