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Mirrors > Home > MPE Home > Th. List > Mathboxes > frege133d | Structured version Visualization version GIF version |
Description: If 𝐹 is a function and 𝐴 and 𝐵 both follow 𝑋 in the transitive closure of 𝐹, then (for distinct 𝐴 and 𝐵) either 𝐴 follows 𝐵 or 𝐵 follows 𝐴 in the transitive closure of 𝐹 (or both if it loops). Similar to Proposition 133 of [Frege1879] p. 86. Compare with frege133 43420. (Contributed by RP, 18-Jul-2020.) |
Ref | Expression |
---|---|
frege133d.f | ⊢ (𝜑 → 𝐹 ∈ V) |
frege133d.xa | ⊢ (𝜑 → 𝑋(t+‘𝐹)𝐴) |
frege133d.xb | ⊢ (𝜑 → 𝑋(t+‘𝐹)𝐵) |
frege133d.fun | ⊢ (𝜑 → Fun 𝐹) |
Ref | Expression |
---|---|
frege133d | ⊢ (𝜑 → (𝐴(t+‘𝐹)𝐵 ∨ 𝐴 = 𝐵 ∨ 𝐵(t+‘𝐹)𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | frege133d.f | . . . 4 ⊢ (𝜑 → 𝐹 ∈ V) | |
2 | frege133d.xb | . . . . 5 ⊢ (𝜑 → 𝑋(t+‘𝐹)𝐵) | |
3 | frege133d.fun | . . . . . . . 8 ⊢ (𝜑 → Fun 𝐹) | |
4 | funrel 6564 | . . . . . . . 8 ⊢ (Fun 𝐹 → Rel 𝐹) | |
5 | 3, 4 | syl 17 | . . . . . . 7 ⊢ (𝜑 → Rel 𝐹) |
6 | reltrclfv 14990 | . . . . . . 7 ⊢ ((𝐹 ∈ V ∧ Rel 𝐹) → Rel (t+‘𝐹)) | |
7 | 1, 5, 6 | syl2anc 583 | . . . . . 6 ⊢ (𝜑 → Rel (t+‘𝐹)) |
8 | eliniseg2 6104 | . . . . . 6 ⊢ (Rel (t+‘𝐹) → (𝑋 ∈ (◡(t+‘𝐹) “ {𝐵}) ↔ 𝑋(t+‘𝐹)𝐵)) | |
9 | 7, 8 | syl 17 | . . . . 5 ⊢ (𝜑 → (𝑋 ∈ (◡(t+‘𝐹) “ {𝐵}) ↔ 𝑋(t+‘𝐹)𝐵)) |
10 | 2, 9 | mpbird 257 | . . . 4 ⊢ (𝜑 → 𝑋 ∈ (◡(t+‘𝐹) “ {𝐵})) |
11 | frege133d.xa | . . . . 5 ⊢ (𝜑 → 𝑋(t+‘𝐹)𝐴) | |
12 | brrelex2 5726 | . . . . 5 ⊢ ((Rel (t+‘𝐹) ∧ 𝑋(t+‘𝐹)𝐴) → 𝐴 ∈ V) | |
13 | 7, 11, 12 | syl2anc 583 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ V) |
14 | un12 4163 | . . . . . 6 ⊢ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵}))) = ({𝐵} ∪ ((◡(t+‘𝐹) “ {𝐵}) ∪ ((t+‘𝐹) “ {𝐵}))) | |
15 | 14 | a1i 11 | . . . . 5 ⊢ (𝜑 → ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵}))) = ({𝐵} ∪ ((◡(t+‘𝐹) “ {𝐵}) ∪ ((t+‘𝐹) “ {𝐵})))) |
16 | 1, 15, 3 | frege131d 43188 | . . . 4 ⊢ (𝜑 → (𝐹 “ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})))) ⊆ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})))) |
17 | 1, 10, 13, 11, 16 | frege83d 43172 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})))) |
18 | elun 4144 | . . . . 5 ⊢ (𝐴 ∈ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})) ↔ (𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵}))) | |
19 | 18 | orbi2i 911 | . . . 4 ⊢ ((𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵}))) ↔ (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ (𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵})))) |
20 | elun 4144 | . . . 4 ⊢ (𝐴 ∈ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵}))) ↔ (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})))) | |
21 | 3orass 1088 | . . . 4 ⊢ ((𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵})) ↔ (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ (𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵})))) | |
22 | 19, 20, 21 | 3bitr4i 303 | . . 3 ⊢ (𝐴 ∈ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵}))) ↔ (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵}))) |
23 | 17, 22 | sylib 217 | . 2 ⊢ (𝜑 → (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵}))) |
24 | eliniseg2 6104 | . . . . 5 ⊢ (Rel (t+‘𝐹) → (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ↔ 𝐴(t+‘𝐹)𝐵)) | |
25 | 7, 24 | syl 17 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ↔ 𝐴(t+‘𝐹)𝐵)) |
26 | 25 | biimpd 228 | . . 3 ⊢ (𝜑 → (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) → 𝐴(t+‘𝐹)𝐵)) |
27 | elsni 4641 | . . . 4 ⊢ (𝐴 ∈ {𝐵} → 𝐴 = 𝐵) | |
28 | 27 | a1i 11 | . . 3 ⊢ (𝜑 → (𝐴 ∈ {𝐵} → 𝐴 = 𝐵)) |
29 | elrelimasn 6083 | . . . . 5 ⊢ (Rel (t+‘𝐹) → (𝐴 ∈ ((t+‘𝐹) “ {𝐵}) ↔ 𝐵(t+‘𝐹)𝐴)) | |
30 | 7, 29 | syl 17 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ ((t+‘𝐹) “ {𝐵}) ↔ 𝐵(t+‘𝐹)𝐴)) |
31 | 30 | biimpd 228 | . . 3 ⊢ (𝜑 → (𝐴 ∈ ((t+‘𝐹) “ {𝐵}) → 𝐵(t+‘𝐹)𝐴)) |
32 | 26, 28, 31 | 3orim123d 1441 | . 2 ⊢ (𝜑 → ((𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵})) → (𝐴(t+‘𝐹)𝐵 ∨ 𝐴 = 𝐵 ∨ 𝐵(t+‘𝐹)𝐴))) |
33 | 23, 32 | mpd 15 | 1 ⊢ (𝜑 → (𝐴(t+‘𝐹)𝐵 ∨ 𝐴 = 𝐵 ∨ 𝐵(t+‘𝐹)𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∨ wo 846 ∨ w3o 1084 = wceq 1534 ∈ wcel 2099 Vcvv 3470 ∪ cun 3943 {csn 4624 class class class wbr 5142 ◡ccnv 5671 “ cima 5675 Rel wrel 5677 Fun wfun 6536 ‘cfv 6542 t+ctcl 14958 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-cnex 11188 ax-resscn 11189 ax-1cn 11190 ax-icn 11191 ax-addcl 11192 ax-addrcl 11193 ax-mulcl 11194 ax-mulrcl 11195 ax-mulcom 11196 ax-addass 11197 ax-mulass 11198 ax-distr 11199 ax-i2m1 11200 ax-1ne0 11201 ax-1rid 11202 ax-rnegex 11203 ax-rrecex 11204 ax-cnre 11205 ax-pre-lttri 11206 ax-pre-lttrn 11207 ax-pre-ltadd 11208 ax-pre-mulgt0 11209 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2937 df-nel 3043 df-ral 3058 df-rex 3067 df-reu 3373 df-rab 3429 df-v 3472 df-sbc 3776 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-pss 3964 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-int 4945 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7865 df-1st 7987 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-er 8718 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11274 df-mnf 11275 df-xr 11276 df-ltxr 11277 df-le 11278 df-sub 11470 df-neg 11471 df-nn 12237 df-2 12299 df-n0 12497 df-z 12583 df-uz 12847 df-fz 13511 df-seq 13993 df-trcl 14960 df-relexp 14993 |
This theorem is referenced by: (None) |
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