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Related theorems GIF version |
| Description: Functionality and domain of an ordered-pair class abstraction. |
| Ref | Expression |
|---|---|
| fnopab2.1 | ⊢ B ∈ V |
| fnopab2.2 | ⊢ F = {〈x, y〉∣(x ∈ A ⋀ y = B)} |
| Ref | Expression |
|---|---|
| fnopab2 | ⊢ F Fn A |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fnopab2.1 | . . . 4 ⊢ B ∈ V | |
| 2 | 1 | eueq1 1920 | . . 3 ⊢ ∃!y y = B |
| 3 | 2 | a1i 8 | . 2 ⊢ (x ∈ A → ∃!y y = B) |
| 4 | fnopab2.2 | . 2 ⊢ F = {〈x, y〉∣(x ∈ A ⋀ y = B)} | |
| 5 | 3, 4 | fnopab 3623 | 1 ⊢ F Fn A |
| Colors of variables: wff set class |
| Syntax hints: ⋀ wa 223 = wceq 958 ∈ wcel 960 ∃!weu 1382 Vcvv 1814 {copab 2671 Fn wfn 3183 |
| This theorem is referenced by: dmopab2 3625 fnopabfv 3764 rnssopab 3831 fopabco 3838 fopabcos 3839 fopabsn 3846 funiunfv 3872 fo1st 4097 fo2nd 4098 curry1 4104 pw2en 4452 mapxpen 4501 unfilem2 4561 pwfilem 4577 pwfilemOLD 4578 aceq3lem 4742 aceq4 4744 ac6lem 4764 iundom 4822 cffnon 4919 seq1fnlem 6314 shftfn 6344 ref 6760 imf 6761 caucvg3 7167 cvgcmp2 7181 cvgcmp2c 7183 cvgcmp3ce 7187 geolimi 7236 eff 7313 reeff1o 7426 sinf 7440 cosf 7441 0vfval 8221 vsfval 8250 ipasslem8 8493 ubthlem6 8530 htthlem11 8626 sincolem 8660 efghgrpilem 8714 efif 8716 shftefif1olem 8736 pjfn 9641 pjmfn 9655 bra11 10036 |
| 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-ral 1652 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-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-fun 3198 df-fn 3199 |