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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 43978. (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 6517 | . . . . . . . 8 ⊢ (Fun 𝐹 → Rel 𝐹) | |
| 5 | 3, 4 | syl 17 | . . . . . . 7 ⊢ (𝜑 → Rel 𝐹) |
| 6 | reltrclfv 14959 | . . . . . . 7 ⊢ ((𝐹 ∈ V ∧ Rel 𝐹) → Rel (t+‘𝐹)) | |
| 7 | 1, 5, 6 | syl2anc 584 | . . . . . 6 ⊢ (𝜑 → Rel (t+‘𝐹)) |
| 8 | eliniseg2 6066 | . . . . . 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 5685 | . . . . 5 ⊢ ((Rel (t+‘𝐹) ∧ 𝑋(t+‘𝐹)𝐴) → 𝐴 ∈ V) | |
| 13 | 7, 11, 12 | syl2anc 584 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ V) |
| 14 | un12 4132 | . . . . . 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 43746 | . . . 4 ⊢ (𝜑 → (𝐹 “ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})))) ⊆ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})))) |
| 17 | 1, 10, 13, 11, 16 | frege83d 43730 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})))) |
| 18 | elun 4112 | . . . . 5 ⊢ (𝐴 ∈ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})) ↔ (𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵}))) | |
| 19 | 18 | orbi2i 912 | . . . 4 ⊢ ((𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵}))) ↔ (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ (𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵})))) |
| 20 | elun 4112 | . . . 4 ⊢ (𝐴 ∈ ((◡(t+‘𝐹) “ {𝐵}) ∪ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵}))) ↔ (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ ({𝐵} ∪ ((t+‘𝐹) “ {𝐵})))) | |
| 21 | 3orass 1089 | . . . 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 218 | . 2 ⊢ (𝜑 → (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) ∨ 𝐴 ∈ {𝐵} ∨ 𝐴 ∈ ((t+‘𝐹) “ {𝐵}))) |
| 24 | eliniseg2 6066 | . . . . 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 229 | . . 3 ⊢ (𝜑 → (𝐴 ∈ (◡(t+‘𝐹) “ {𝐵}) → 𝐴(t+‘𝐹)𝐵)) |
| 27 | elsni 4602 | . . . 4 ⊢ (𝐴 ∈ {𝐵} → 𝐴 = 𝐵) | |
| 28 | 27 | a1i 11 | . . 3 ⊢ (𝜑 → (𝐴 ∈ {𝐵} → 𝐴 = 𝐵)) |
| 29 | elrelimasn 6046 | . . . . 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 229 | . . 3 ⊢ (𝜑 → (𝐴 ∈ ((t+‘𝐹) “ {𝐵}) → 𝐵(t+‘𝐹)𝐴)) |
| 32 | 26, 28, 31 | 3orim123d 1446 | . 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 206 ∨ wo 847 ∨ w3o 1085 = wceq 1540 ∈ wcel 2109 Vcvv 3444 ∪ cun 3909 {csn 4585 class class class wbr 5102 ◡ccnv 5630 “ cima 5634 Rel wrel 5636 Fun wfun 6493 ‘cfv 6499 t+ctcl 14927 |
| 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 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5229 ax-sep 5246 ax-nul 5256 ax-pow 5315 ax-pr 5382 ax-un 7691 ax-cnex 11100 ax-resscn 11101 ax-1cn 11102 ax-icn 11103 ax-addcl 11104 ax-addrcl 11105 ax-mulcl 11106 ax-mulrcl 11107 ax-mulcom 11108 ax-addass 11109 ax-mulass 11110 ax-distr 11111 ax-i2m1 11112 ax-1ne0 11113 ax-1rid 11114 ax-rnegex 11115 ax-rrecex 11116 ax-cnre 11117 ax-pre-lttri 11118 ax-pre-lttrn 11119 ax-pre-ltadd 11120 ax-pre-mulgt0 11121 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-reu 3352 df-rab 3403 df-v 3446 df-sbc 3751 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4485 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-int 4907 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6262 df-ord 6323 df-on 6324 df-lim 6325 df-suc 6326 df-iota 6452 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-riota 7326 df-ov 7372 df-oprab 7373 df-mpo 7374 df-om 7823 df-1st 7947 df-2nd 7948 df-frecs 8237 df-wrecs 8268 df-recs 8317 df-rdg 8355 df-er 8648 df-en 8896 df-dom 8897 df-sdom 8898 df-pnf 11186 df-mnf 11187 df-xr 11188 df-ltxr 11189 df-le 11190 df-sub 11383 df-neg 11384 df-nn 12163 df-2 12225 df-n0 12419 df-z 12506 df-uz 12770 df-fz 13445 df-seq 13943 df-trcl 14929 df-relexp 14962 |
| This theorem is referenced by: (None) |
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