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Mirrors > Home > HSE Home > Th. List > atsseq | Structured version Visualization version GIF version |
Description: Two atoms in a subset relationship are equal. (Contributed by NM, 26-Jun-2004.) (New usage is discouraged.) |
Ref | Expression |
---|---|
atsseq | ⊢ ((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) → (𝐴 ⊆ 𝐵 ↔ 𝐴 = 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | atne0 31525 | . . . . 5 ⊢ (𝐴 ∈ HAtoms → 𝐴 ≠ 0ℋ) | |
2 | 1 | ad2antrr 724 | . . . 4 ⊢ (((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) ∧ 𝐴 ⊆ 𝐵) → 𝐴 ≠ 0ℋ) |
3 | atelch 31524 | . . . . . . . 8 ⊢ (𝐴 ∈ HAtoms → 𝐴 ∈ Cℋ ) | |
4 | atss 31526 | . . . . . . . 8 ⊢ ((𝐴 ∈ Cℋ ∧ 𝐵 ∈ HAtoms) → (𝐴 ⊆ 𝐵 → (𝐴 = 𝐵 ∨ 𝐴 = 0ℋ))) | |
5 | 3, 4 | sylan 580 | . . . . . . 7 ⊢ ((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) → (𝐴 ⊆ 𝐵 → (𝐴 = 𝐵 ∨ 𝐴 = 0ℋ))) |
6 | 5 | imp 407 | . . . . . 6 ⊢ (((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) ∧ 𝐴 ⊆ 𝐵) → (𝐴 = 𝐵 ∨ 𝐴 = 0ℋ)) |
7 | 6 | ord 862 | . . . . 5 ⊢ (((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) ∧ 𝐴 ⊆ 𝐵) → (¬ 𝐴 = 𝐵 → 𝐴 = 0ℋ)) |
8 | 7 | necon1ad 2957 | . . . 4 ⊢ (((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) ∧ 𝐴 ⊆ 𝐵) → (𝐴 ≠ 0ℋ → 𝐴 = 𝐵)) |
9 | 2, 8 | mpd 15 | . . 3 ⊢ (((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) ∧ 𝐴 ⊆ 𝐵) → 𝐴 = 𝐵) |
10 | 9 | ex 413 | . 2 ⊢ ((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) → (𝐴 ⊆ 𝐵 → 𝐴 = 𝐵)) |
11 | eqimss 4037 | . 2 ⊢ (𝐴 = 𝐵 → 𝐴 ⊆ 𝐵) | |
12 | 10, 11 | impbid1 224 | 1 ⊢ ((𝐴 ∈ HAtoms ∧ 𝐵 ∈ HAtoms) → (𝐴 ⊆ 𝐵 ↔ 𝐴 = 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∨ wo 845 = wceq 1541 ∈ wcel 2106 ≠ wne 2940 ⊆ wss 3945 Cℋ cch 30109 0ℋc0h 30115 HAtomscat 30145 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5357 ax-pr 5421 ax-un 7709 ax-cnex 11150 ax-resscn 11151 ax-1cn 11152 ax-icn 11153 ax-addcl 11154 ax-addrcl 11155 ax-mulcl 11156 ax-mulrcl 11157 ax-mulcom 11158 ax-addass 11159 ax-mulass 11160 ax-distr 11161 ax-i2m1 11162 ax-1ne0 11163 ax-1rid 11164 ax-rnegex 11165 ax-rrecex 11166 ax-cnre 11167 ax-pre-lttri 11168 ax-pre-lttrn 11169 ax-pre-ltadd 11170 ax-pre-mulgt0 11171 ax-pre-sup 11172 ax-addf 11173 ax-mulf 11174 ax-hilex 30179 ax-hfvadd 30180 ax-hvcom 30181 ax-hvass 30182 ax-hv0cl 30183 ax-hvaddid 30184 ax-hfvmul 30185 ax-hvmulid 30186 ax-hvmulass 30187 ax-hvdistr1 30188 ax-hvdistr2 30189 ax-hvmul0 30190 ax-hfi 30259 ax-his1 30262 ax-his2 30263 ax-his3 30264 ax-his4 30265 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3775 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-pss 3964 df-nul 4320 df-if 4524 df-pw 4599 df-sn 4624 df-pr 4626 df-op 4630 df-uni 4903 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5568 df-eprel 5574 df-po 5582 df-so 5583 df-fr 5625 df-we 5627 df-xp 5676 df-rel 5677 df-cnv 5678 df-co 5679 df-dm 5680 df-rn 5681 df-res 5682 df-ima 5683 df-pred 6290 df-ord 6357 df-on 6358 df-lim 6359 df-suc 6360 df-iota 6485 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7350 df-ov 7397 df-oprab 7398 df-mpo 7399 df-om 7840 df-1st 7959 df-2nd 7960 df-frecs 8250 df-wrecs 8281 df-recs 8355 df-rdg 8394 df-er 8688 df-map 8807 df-pm 8808 df-en 8925 df-dom 8926 df-sdom 8927 df-sup 9421 df-inf 9422 df-pnf 11234 df-mnf 11235 df-xr 11236 df-ltxr 11237 df-le 11238 df-sub 11430 df-neg 11431 df-div 11856 df-nn 12197 df-2 12259 df-3 12260 df-4 12261 df-n0 12457 df-z 12543 df-uz 12807 df-q 12917 df-rp 12959 df-xneg 13076 df-xadd 13077 df-xmul 13078 df-icc 13315 df-seq 13951 df-exp 14012 df-cj 15030 df-re 15031 df-im 15032 df-sqrt 15166 df-abs 15167 df-topgen 17373 df-psmet 20872 df-xmet 20873 df-met 20874 df-bl 20875 df-mopn 20876 df-top 22327 df-topon 22344 df-bases 22380 df-lm 22664 df-haus 22750 df-grpo 29673 df-gid 29674 df-ginv 29675 df-gdiv 29676 df-ablo 29725 df-vc 29739 df-nv 29772 df-va 29775 df-ba 29776 df-sm 29777 df-0v 29778 df-vs 29779 df-nmcv 29780 df-ims 29781 df-hnorm 30148 df-hvsub 30151 df-hlim 30152 df-sh 30387 df-ch 30401 df-ch0 30433 df-cv 31459 df-at 31518 |
This theorem is referenced by: atnemeq0 31557 |
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