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Mirrors > Home > NFE Home > Th. List > enmap2lem4 | GIF version |
Description: Lemma for enmap2 6069. The converse of W is a function. (Contributed by SF, 26-Feb-2015.) |
Ref | Expression |
---|---|
enmap2lem4.1 | ⊢ W = (s ∈ (G ↑m a) ↦ (s ∘ ◡r)) |
Ref | Expression |
---|---|
enmap2lem4 | ⊢ (r:a–1-1-onto→b → Fun ◡W) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | enmap2lem4.1 | . . . . . . 7 ⊢ W = (s ∈ (G ↑m a) ↦ (s ∘ ◡r)) | |
2 | 1 | enmap2lem3 6066 | . . . . . 6 ⊢ (r:a–1-1-onto→b → (yWx → y = (x ∘ r))) |
3 | 1 | enmap2lem3 6066 | . . . . . 6 ⊢ (r:a–1-1-onto→b → (zWx → z = (x ∘ r))) |
4 | 2, 3 | anim12d 546 | . . . . 5 ⊢ (r:a–1-1-onto→b → ((yWx ∧ zWx) → (y = (x ∘ r) ∧ z = (x ∘ r)))) |
5 | eqtr3 2372 | . . . . 5 ⊢ ((y = (x ∘ r) ∧ z = (x ∘ r)) → y = z) | |
6 | 4, 5 | syl6 29 | . . . 4 ⊢ (r:a–1-1-onto→b → ((yWx ∧ zWx) → y = z)) |
7 | 6 | alrimiv 1631 | . . 3 ⊢ (r:a–1-1-onto→b → ∀z((yWx ∧ zWx) → y = z)) |
8 | 7 | alrimivv 1632 | . 2 ⊢ (r:a–1-1-onto→b → ∀x∀y∀z((yWx ∧ zWx) → y = z)) |
9 | dffun2 5120 | . . 3 ⊢ (Fun ◡W ↔ ∀x∀y∀z((x◡Wy ∧ x◡Wz) → y = z)) | |
10 | brcnv 4893 | . . . . . . 7 ⊢ (x◡Wy ↔ yWx) | |
11 | brcnv 4893 | . . . . . . 7 ⊢ (x◡Wz ↔ zWx) | |
12 | 10, 11 | anbi12i 678 | . . . . . 6 ⊢ ((x◡Wy ∧ x◡Wz) ↔ (yWx ∧ zWx)) |
13 | 12 | imbi1i 315 | . . . . 5 ⊢ (((x◡Wy ∧ x◡Wz) → y = z) ↔ ((yWx ∧ zWx) → y = z)) |
14 | 13 | albii 1566 | . . . 4 ⊢ (∀z((x◡Wy ∧ x◡Wz) → y = z) ↔ ∀z((yWx ∧ zWx) → y = z)) |
15 | 14 | 2albii 1567 | . . 3 ⊢ (∀x∀y∀z((x◡Wy ∧ x◡Wz) → y = z) ↔ ∀x∀y∀z((yWx ∧ zWx) → y = z)) |
16 | 9, 15 | bitri 240 | . 2 ⊢ (Fun ◡W ↔ ∀x∀y∀z((yWx ∧ zWx) → y = z)) |
17 | 8, 16 | sylibr 203 | 1 ⊢ (r:a–1-1-onto→b → Fun ◡W) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 358 ∀wal 1540 = wceq 1642 class class class wbr 4640 ∘ ccom 4722 ◡ccnv 4772 Fun wfun 4776 –1-1-onto→wf1o 4781 (class class class)co 5526 ↦ cmpt 5652 ↑m cmap 6000 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-13 1712 ax-14 1714 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 ax-nin 4079 ax-xp 4080 ax-cnv 4081 ax-1c 4082 ax-sset 4083 ax-si 4084 ax-ins2 4085 ax-ins3 4086 ax-typlower 4087 ax-sn 4088 |
This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-3or 935 df-3an 936 df-nan 1288 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-eu 2208 df-mo 2209 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2479 df-ne 2519 df-ral 2620 df-rex 2621 df-reu 2622 df-rmo 2623 df-rab 2624 df-v 2862 df-sbc 3048 df-nin 3212 df-compl 3213 df-in 3214 df-un 3215 df-dif 3216 df-symdif 3217 df-ss 3260 df-pss 3262 df-nul 3552 df-if 3664 df-pw 3725 df-sn 3742 df-pr 3743 df-uni 3893 df-int 3928 df-opk 4059 df-1c 4137 df-pw1 4138 df-uni1 4139 df-xpk 4186 df-cnvk 4187 df-ins2k 4188 df-ins3k 4189 df-imak 4190 df-cok 4191 df-p6 4192 df-sik 4193 df-ssetk 4194 df-imagek 4195 df-idk 4196 df-iota 4340 df-0c 4378 df-addc 4379 df-nnc 4380 df-fin 4381 df-lefin 4441 df-ltfin 4442 df-ncfin 4443 df-tfin 4444 df-evenfin 4445 df-oddfin 4446 df-sfin 4447 df-spfin 4448 df-phi 4566 df-op 4567 df-proj1 4568 df-proj2 4569 df-opab 4624 df-br 4641 df-1st 4724 df-swap 4725 df-sset 4726 df-co 4727 df-ima 4728 df-si 4729 df-id 4768 df-xp 4785 df-cnv 4786 df-rn 4787 df-dm 4788 df-res 4789 df-fun 4790 df-fn 4791 df-f 4792 df-f1 4793 df-fo 4794 df-f1o 4795 df-fv 4796 df-2nd 4798 df-ov 5527 df-oprab 5529 df-mpt 5653 df-mpt2 5655 df-txp 5737 df-ins2 5751 df-ins3 5753 df-image 5755 df-ins4 5757 df-si3 5759 df-funs 5761 df-map 6002 |
This theorem is referenced by: enmap2 6069 |
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