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Mirrors > Home > MPE Home > Th. List > Mathboxes > fv2prop | Structured version Visualization version GIF version |
Description: The function value of unordered pair of ordered pairs with first components 1 and 2 at 1. (Contributed by AV, 4-Feb-2023.) |
Ref | Expression |
---|---|
fv2prop | ⊢ (𝐵 ∈ 𝑉 → ({〈1, 𝐴〉, 〈2, 𝐵〉}‘2) = 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2ex 11708 | . 2 ⊢ 2 ∈ V | |
2 | 1ne2 11839 | . 2 ⊢ 1 ≠ 2 | |
3 | fvpr2g 6948 | . 2 ⊢ ((2 ∈ V ∧ 𝐵 ∈ 𝑉 ∧ 1 ≠ 2) → ({〈1, 𝐴〉, 〈2, 𝐵〉}‘2) = 𝐵) | |
4 | 1, 2, 3 | mp3an13 1447 | 1 ⊢ (𝐵 ∈ 𝑉 → ({〈1, 𝐴〉, 〈2, 𝐵〉}‘2) = 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1536 ∈ wcel 2113 ≠ wne 3015 Vcvv 3491 {cpr 4562 〈cop 4566 ‘cfv 6348 1c1 10531 2c2 11686 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2792 ax-sep 5196 ax-nul 5203 ax-pow 5259 ax-pr 5323 ax-un 7454 ax-resscn 10587 ax-1cn 10588 ax-icn 10589 ax-addcl 10590 ax-addrcl 10591 ax-mulcl 10592 ax-mulrcl 10593 ax-mulcom 10594 ax-addass 10595 ax-mulass 10596 ax-distr 10597 ax-i2m1 10598 ax-1ne0 10599 ax-1rid 10600 ax-rnegex 10601 ax-rrecex 10602 ax-cnre 10603 ax-pre-lttri 10604 ax-pre-lttrn 10605 ax-pre-ltadd 10606 ax-pre-mulgt0 10607 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1083 df-3an 1084 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2799 df-cleq 2813 df-clel 2892 df-nfc 2962 df-ne 3016 df-nel 3123 df-ral 3142 df-rex 3143 df-reu 3144 df-rab 3146 df-v 3493 df-sbc 3769 df-csb 3877 df-dif 3932 df-un 3934 df-in 3936 df-ss 3945 df-nul 4285 df-if 4461 df-pw 4534 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5060 df-opab 5122 df-mpt 5140 df-id 5453 df-po 5467 df-so 5468 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-riota 7107 df-ov 7152 df-oprab 7153 df-mpo 7154 df-er 8282 df-en 8503 df-dom 8504 df-sdom 8505 df-pnf 10670 df-mnf 10671 df-xr 10672 df-ltxr 10673 df-le 10674 df-sub 10865 df-neg 10866 df-2 11694 |
This theorem is referenced by: line2xlem 44810 |
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