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Related theorems GIF version |
| Description: Bound-variable hypothesis builder for function value. |
| Ref | Expression |
|---|---|
| hbfv.1 | ⊢ (y ∈ F → ∀x y ∈ F) |
| hbfv.2 | ⊢ (y ∈ A → ∀x y ∈ A) |
| Ref | Expression |
|---|---|
| hbfv | ⊢ (y ∈ (F ‘A) → ∀x y ∈ (F ‘A)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-fv 3204 | . 2 ⊢ (F ‘A) = ∪{z∣(F “ {A}) = {z}} | |
| 2 | hbfv.1 | . . . . . 6 ⊢ (y ∈ F → ∀x y ∈ F) | |
| 3 | hbfv.2 | . . . . . . 7 ⊢ (y ∈ A → ∀x y ∈ A) | |
| 4 | 3 | hbsn 2442 | . . . . . 6 ⊢ (y ∈ {A} → ∀x y ∈ {A}) |
| 5 | 2, 4 | hbima 3417 | . . . . 5 ⊢ (y ∈ (F “ {A}) → ∀x y ∈ (F “ {A})) |
| 6 | ax-17 973 | . . . . 5 ⊢ (y ∈ {z} → ∀x y ∈ {z}) | |
| 7 | 5, 6 | hbeq 1568 | . . . 4 ⊢ ((F “ {A}) = {z} → ∀x(F “ {A}) = {z}) |
| 8 | 7 | hbab 1470 | . . 3 ⊢ (y ∈ {z∣(F “ {A}) = {z}} → ∀x y ∈ {z∣(F “ {A}) = {z}}) |
| 9 | 8 | hbuni 2513 | . 2 ⊢ (y ∈ ∪{z∣(F “ {A}) = {z}} → ∀x y ∈ ∪{z∣(F “ {A}) = {z}}) |
| 10 | 1, 9 | hbxfr 1566 | 1 ⊢ (y ∈ (F ‘A) → ∀x y ∈ (F ‘A)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 ∀wal 956 = wceq 958 ∈ wcel 960 {cab 1466 {csn 2413 ∪cuni 2507 “ cima 3179 ‘cfv 3188 |
| This theorem is referenced by: hbfvd 3736 hbfvd2 3737 csbfv12g 3748 fvopab2 3797 eqfnfvf 3804 elrnopabg 3806 ffnfvf 3835 abrexexlem2 3865 funiunfvf 3876 f1fvf 3881 hbiso 3898 hbrdg 3942 rdgsucopab 3952 rdgsucopabn 3953 frsucopab 3960 abianfplem 3967 hbopr 3987 dom2d 4410 unblem2 4552 unblem3 4553 inf0 4615 trcl 4655 tz9.12lem3 4671 rankid 4682 rankval4 4712 uniimadomf 4821 cardprc 4872 cardaleph 4896 alephfplem2 4908 om2uzsuc 6297 hbsum1 6983 hbsum 6984 fsumserzf 7000 isumvaltf 7193 isumnn0nna 7208 isummulc1a 7214 isumcmpi 7215 minvecdist 8581 cnlnadjlem5 9999 |
| 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-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-xp 3190 df-cnv 3192 df-dm 3194 df-rn 3195 df-res 3196 df-ima 3197 df-fv 3204 |